If you’re a pilot, flight attendant or astronaut, you may benefit from consulting with an aerospace medical physician. They specialize in health risks and conditions associated with traveling into abnormal air and space environments, usually caused by pressure and altitude changes or reduced oxygen levels. This includes hypoxia, ebullism and hypobaria.Other areas of expertise include jet lag, dehydration and your body’s response to thermal stress, which can influence your decision making ability. More serious conditions might include G-induced loss of consciousness (known as G-LOC), spatial disorientation and space adaptation syndrome, a sickness common when your body is adjusting to weightlessness.

Cardiologists are doctors who specialize in the diagnosis, prevention and treatment of conditions related to the heart and blood vessels. A patient may be referred to a cardiologist if he experiences symptoms like chest pains, shortness of breath, dizziness, or high blood pressure. The physician will then evaluate your symptoms, take your health and family history and your weight. The cardiologist may order additional diagnostic tests, such as an echocardiogram, X-ray or blood tests. If necessary, the cardiologist may also call for a cardiac catheterization - a procedure in which a small tube is inserted into or near the heart that can take pictures of the heart's activity, or relieve blockage. Once determining whether there is a heart condition, a cardiologist will treat a patient through cholesterol management, cardiac rehabilitation, and fitness. If surgical intervention is required, like open-heart surgery, a cardiologist will make that determination, but a cardiothoracic surgeon will perform the procedure.

Colorectal surgeons are doctors who perform surgery in order to correct problems with the anus, rectum or colon. These physicians perform colonoscopies, and other diagnostic procedures, in order to identify any issues that require surgical intervention. They then determine what type of surgical procedure would be best. The specialists also care for these patients post-operation to ensure proper healing and recovery.

Also sometimes referred to as intensivists, critical care specialists are physicians with specialized training in the diagnosis and management of life-threatening conditions, such as those that affect vital organs like the heart and lungs, those that make breathing difficult or impossible, and those that affect entire organ systems, like the renal system. Critical care specialists are typically found in a hospital's intensive care unit where they monitor patients with life-threatening conditions and make determinations as to the best course of treatment.

Radiologists help doctors get a closer look at what’s happening inside your body. If your primary care doctor wants to investigate your symptoms further, they may refer you to a radiologist to get an ultrasound or x-ray. Some radiologists specialize in mammography and breast imaging, which is who you see when you need a mammogram. A Radiologist can also determine if bones are broken or fractured after any kind of accident.Radiologists are trained to perform MRIs and CT scans, both of which are used to determine the presence of diseases or disorders and help your doctor properly diagnose you. They can detect anything from tumors, bleeding and infections to bone and muscle disorders.

An emergency physician is a doctor who is an expert in handling conditions of an urgent and extremely dangerous nature. These specialists work in the emergency room (ER) departments of hospitals where they oversee cases involving cardiac distress, trauma, fractures, lacerations and other acute conditions.Emergency physicians are specially trained to make urgent life-saving decisions to treat patients during an emergency medical crisis. These doctors diagnose and stabilize patients before they are either well enough to be discharged, or transferred to the appropriate department for long-term care.

An endocrinologist is a physician with extensive training in understanding, diagnosing and treating conditions related to the endocrine system. The endocrine system regulates the balance of hormones. Conditions of the endocrine system involve an over-abundance, or deficiency of a certain hormone. While there is a range when it comes to the amount of a hormone that is deemed normal in a human, these specialists determine whether a person's amount of hormone is indicative of a health concern.

A family practitioner is a doctor who specializes in caring for people of all ages, at all stages of life. Rather than focusing on the treatment of one disease or patient population, family practitioners are often the doctors that people see for their everyday ailments, like cold and flu or respiratory infections, and health screenings. When necessary, family practitioners will provide referrals for conditions that require the expertise of another specialist.The doctors may also provide physicals, inoculations, prenatal care, treat chronic diseases, like diabetes and asthma, and provide advice on disease prevention.

A gastroenterologist is a specialist in diagnosis and treatment of conditions involving the digestive/gastrointestinal (GI) tract. These doctors are experts on how food moves through the digestive system and is chemically broken down, with nutrients being absorbed and waste excreted. You might see this kind of doctor if you are experiencing any number of stomach issues, some of which might be severe diarrhea, irritable bowel syndrome, hemorrhoids, ulcers, acid reflux, Crohn's disease and more.

A general dentist is your primary care dental provider. This dentist diagnoses, treats, and manages your overall oral health care needs, including gum care, root canals, fillings, crowns, veneers, bridges, and preventive education.

Gynecologic oncologists specialize in cancers that occur in the female reproductive system. This includes ovarian cancer, cervical cancer and endometrial cancer, as well as the less commonly talked about female reproductive cancers like vulvar cancer, vaginal cancer and fallopian tube cancer.In addition to diagnosing the stage of your cancer and recommending treatment options, they’ll provide care throughout your treatment and help you manage your symptoms. They’ll often work closely with a pathologist and a radiologist to properly diagnose you and determine if your cancer is shrinking or spreading throughout treatment. They’re even trained to administer chemotherapy and to perform surgery to remove cancer when necessary.

A hematology specialist is an expert in disorders of the blood, the blood forming organs and bone marrow. These doctors diagnose, treat and work to prevent diseases that affect the production of blood and its components, as well as the ability of the blood to perform its many functions, such as coagulation and carrying oxygen to the lungs and tissue.Hematologists diagnose and treat blood disorders, such as anemia, hemophilia, leukemia, sickle cell anemia, deep vein thrombosis and pulmonary embolism.Depending on the condition, hematology specialists may treat a patient with a blood transfusion, stem cell transplantation, bone marrow transplant, radiotherapy, anticoagulation therapy or medication.

A hematology specialist is an expert in disorders of the blood, the blood forming organs and bone marrow. These doctors diagnose, treat and work to prevent diseases that affect the production of blood and its components, as well as the ability of the blood to perform its many functions, such as coagulation and carrying oxygen to the lungs and tissue. Hematologists diagnose and treat blood disorders, such as anemia, hemophilia, leukemia, sickle cell anemia, deep vein thrombosis and pulmonary embolism. Depending on the condition, hematology specialists may treat a patient with a blood transfusion, stem cell transplantation, bone marrow transplant, radiotherapy, anticoagulation therapy or medication.

A hepatologist is a physician who specializes in the diagnosis and treatment of diseases of the liver, gall bladder, pancreas and biliary tree - the path through which bile that is secreted by the liver travels to the duodenum. These organs are responsible for many essential bodily functions, such as production of hormones and enzymes, filtering the blood, detoxifying chemicals, metabolizing drugs, and digesting and processing food.Common disorders that are treated by hepatologists are cirrhosis of the liver, gallstones, pancreatitis and hepatitis.

An infectious disease specialist has specialized training in the diagnosis and treatment of contagious diseases.Infectious diseases, also known as contagious or transmissible diseases, are those that stem from pathogen from a host organism. These infections may spread to other carriers through physical touch, airborne inhalation, bodily fluids or contaminated foods.Infectious disease specialists identify whether the disease is caused by bacteria, a virus, a fungus or a parasite often through blood tests and then determine what course of treatment, if any, is necessary.

An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.

A pediatric specialist is a physician who has extensive training in the diagnosis and treatment of specific conditions in children. These doctors are specialists in one particular therapy area, such as dermatology, pulmonology, surgery, or ophthalmology, in addition to being pediatricians. Pediatric specialists are who parents would take their children to when they are diagnosed with a condition requiring specialist treatment not provided by their pediatrician or primary care provider. While specialists in any area are qualified to treat children as well as adults, pediatric specialists have specific training in the way diseases affect children who are still growing and have different emotional needs than adults.

The main responsibility of a perinatologists, also known as a maternal-fetal medicine specialist, is to treat, monitor and assist pregnant mothers through high-risk pregnancies. This includes high blood pressure, early labor and bleeding. They're also able to identify birth defects and then recommend necessary treatments to support your baby before he/she is born. Other reasons you may need to see a perinatologist during your pregnancy include diabetes, problems with a previous pregnancy or carrying twins. Having completed OB-GYN training, they're experts on the female reproductive system with additional specialized training in un-routine pregnancies. So, whether you know you're at risk going into your pregnancy or problems arise unexpectedly, perinatologists can help you.

A nephrologist is a physician who is specially trained to diagnose and treat conditions affecting the kidneys or renal system. A nephrologist will determine through urine analysis, blood test, X-ray, sonogram, or kidney biopsy how well the kidneys are functioning and will then prescribe a special diet and exercise program, medication or dialysis - a process by which a machine filters the blood when the kidney is no longer capable of doing so.

A neurological surgeon is a physician who surgically treats disorders of the nervous system, which is comprised of the brain, spinal cord and nerves.In addition to treating trauma of the head and spine, these doctors also treat disorders like epilepsy, aneurysms, hydrocephalus, Parkinson's disease, multiple sclerosis, stroke, spinal disc herniation, and spinal disease.Neurological surgeons can perform surgical procedures on the brain, such as stereotactic surgery, microsurgery, endoscopic surgery, stereotactic radiosurgery, and endovascular image guided methods.

A neurologist is a physician who diagnoses and treats disorders of the nervous system which is comprised of the brain, spinal cord and nerves. These doctors do not perform surgery, but refer patients to neurological surgeons when they determine that surgical intervention is necessary. Some of the conditions that neurologists diagnose and treat are epilepsy, aneurysms, hydrocephalus, Parkinson's disease, multiple sclerosis, stroke, spinal disc herniation, and spinal disease. In addition to using diagnostic tests like MRI, CT scans, EEG and EMG, neurologists also employ neurological testing to gauge muscle strength and movement, balance, reflexes, sensation, memory, speech, and other cognitive abilities.

Neuroradiologists focus specifically on diagnosing conditions related to the nervous system, spine, head and neck through radiology. They can identify abnormalities in these areas and help doctors properly diagnose the presence of tumors, aneurysms and even dementia. It's also common for them to consult with patients with persistent headaches or back pains, trauma to a certain area, or any issue that can affect brain function, such as a stroke. Like any radiologist, they are trained to perform x-rays, cat scans, ultrasounds and MRIs, but they work closely with neurologists and neurosurgeons.

An obstetrician & gynecologist, or OB/GYN, is a physician who cares for women throughout their pregnancies, straight through to the delivery of their baby (obstetrician). They also specialize in annual care, as well as the diagnosis and treatment of disorders of the female reproductive system (gynecologist). Many physicians specialize in both of these fields in order to provide complete overall health services to women at every stage of life.

You might work with an occupational therapist when you’re injured or if you have a disability. They rehabilitate and assist patients with every day activities, such as eating, getting dressed, working and attending social events. This includes self-care, leisure and work-related activities that lead to increased independence and development. Their goal is to empower people to still live the life they want despite any physical, developmental, social and/or emotional issues they might face.

Think of an oncologist as your main physician for cancer care. After being diagnosed, you’ll meet regularly with an oncologist to explore and manage your treatment options, as well as monitor your condition throughout the process. Medical oncologists are extremely knowledgeable in various types of cancer treatment and can recommend the right method for the type and stage of cancer you’re facing.They may also refer you to additional specialists throughout your care, but they will always be your home base for questions and support. It’s also worth mentioning that medical oncologists deal mostly with solid tumors while hematologists specialize in cancers that involve blood disorders, such as leukemia.

An oral & maxillofacial surgeon is a physician who surgically corrects conditions of the mouth and surrounding facial structures including the head, neck and jaws. These doctors usually start out as dentists before undertaking extensive surgical and medical training.

An orthopaedic surgeon is a physician who specializes in diagnosis and surgical treatment of injuries and disorders involving the musculoskeletal system, such as hip replacements and arthroscopic knee surgery.In addition to treating trauma to the musculoskeletal system, these doctors also deal with sports injuries, degenerative diseases, infections, tumors and congenital disorders.

An otolaryngologist is more commonly referred to as an ENT, someone that can treat medical issues you may be having with your ears, nose, or throat. This is a physician who is specially trained to diagnose and treat conditions of the ear, nose, sinuses, larynx (voice box), mouth, throat, head, and neck. These doctors treat patients through both medical and surgical means. For instance, an otolaryngologist may treat an obstruction of the nasal passage, caused by malformation of the nose, through rhinoplasty.

A pathologist is a physician who specializes in the causes and paths taken by different diseases in order to accurately diagnose an illness. Pathologists diagnose and determine the characteristics of a disease through the study of biopsies of diseased tissue or of bodily fluids. For example, a pathologist will look at a biopsy of a skin lesion in order to diagnose or rule out skin cancer. A pathologist will also look at a Pap smear in order to check for a gynecological cancer like cancer of the uterus. In addition to determining the cause and development of a disease, these specialists also study the changes a disease makes to a body and the consequences of those structural changes.

A pediatric specialist is a physician who has extensive training in the diagnosis and treatment of specific conditions in children. These doctors are specialists in one particular therapy area, such as dermatology, pulmonology, surgery, or ophthalmology, in addition to being pediatricians. Pediatric specialists are who parents would take their children to when they are diagnosed with a condition requiring specialist treatment not provided by their pediatrician or primary care provider. While specialists in any area are qualified to treat children as well as adults, pediatric specialists have specific training in the way diseases affect children who are still growing and have different emotional needs than adults.

Pediatric gastroenterologists can treat a variety of diseases and conditions in infants and children related to their liver, pancreas or intestines. If your child has severe or recurrent abdominal pain, constipation or diarrhea, a pediatric gastroenterologist can help you get to the bottom of it. They can also help identify the many possible causes of failure to thrive in infants. Other common conditions they treat include Crohn's Disease, inflammatory bowel disease, liver disease, short gut syndrome and hepatitis C, as well as nutritional disorders like celiac disease and lactose intolerance. In order to diagnose and treat your child's condition, gastroenterologists can perform colonoscopies and other diagnostic testing before deciding on the best treatment plan.

A pediatrician is a doctor who specializes in the regular care of children, as well as the diagnosis and treatment of illness in children. Young patients are often more complicated to treat because they are still growing and developing. While pediatricians may sub-specialize in specific therapy areas like oncology, surgery, ophthalmology, and anesthesiology, in general, pediatricians provide services like vaccinations, health exams, and treatment of common ailments and injuries. In addition, pediatricians are trained to handle the complex emotional and behavioral issues faced by children, especially during puberty. Pediatricians normally see their patients from birth until the age of 18, although some may agree to treat patients into their early 20s, if requested.

A physiatrist is a doctor who specializes in the rehabilitation and physiological treatment of patients with an illness or injury that affects movement. These specialists have extensive knowledge of the nerves, muscles, bone, and brain. Physiatrists are also experts in pain medication. Some common conditions that physiatrists treat are rheumatoid arthritis, neurological and spinal disorders and injuries, chronic pain disorders, like fibromyalgia, and musculoskeletal issues, like broken bones and torn muscles. These physicians also often coordinate a team of other specialists in order to maximize the patient's recovery, such as occupational therapists, speech therapists, neurologists, orthopedists, and counselors.

A plastic surgery specialist is a physician with extensive training in the execution of plastic surgery procedures. Plastic surgery is the use of surgical procedures to rebuild or reshape injured or misshapen body parts. Congenital defects, such as a cleft lip or palate, can be corrected by a plastic surgery specialist. Injuries sustained during auto accidents also may require the services of a plastic surgery specialist. These procedures fall under the category of reconstructive plastic surgery. The other category of plastic surgery is cosmetic plastic surgery. Plastic surgery specialists often perform procedures like breast augmentation, face lifts, tummy tucks, liposuction, and lip injection as elective surgeries for patients who wish to make aesthetic improvements.

A psychiatrist is a doctor with specific training in the diagnosis and treatment of mental illness. He or she can not only provide the counseling necessary to both diagnose and treat a patient, but can also prescribe medication when needed. In some cases, a psychiatrist will only provide the medication and the counseling will be provided by another healthcare specialist, like a certified counselor or psychologist. Like other doctors, psychiatrists employ diagnostic tools like CT scans and MRI in order to observe the structure and function of a patient's brain. Once a diagnosis is made, these specialists may use behavior or cognitive therapy in order to address the patient's condition, or a multitude of other types of therapy, in conjunction with or in place of medication.

A medical toxicologist treats drug overdoses, whether intentional or unintentional, but they also study the specific effects various drugs and medications have on our health in specific doses. In addition to drug-related illnesses, a toxicologist can treat poisonous bug bites, snake bites and reactions to toxic plants or food. Toxicologists can also treat and diagnose exposure to any kind of toxic chemicals, gases (such as carbon monoxide) or pesticides as well as lead, mercury and arsenic poisoning. If you work in or live close to industrial facilities, you might worry about exposure to certain chemicals and gases that would adversely affect your body's normal function. Don't hesitate to consult with a toxicologist about your specific concerns.

A pulmonologist is a physician who specializes in the diagnosis and treatment of conditions related to the lungs and respiratory tract.These specialists are similar to critical care specialists in that their patients often require mechanical ventilation to assist their breathing.Pulmonologists diagnose and treat patients with conditions such as asthma, cystic fibrosis, asbestosis, pulmonary fibrosis, lung cancer, COPD, and emphysema. Exposure and inhalation of certain toxic substances may also warrant the services of a pulmonologist.Some of the tools and tests pulmonologists use to diagnose a patient are a stethoscope in order to listen for abnormal breathing sounds, chest X-rays, CT scans, blood tests, bronchoscopy, and polysomnography.

A radiologist is a physician who specializes in the use of medical imaging to diagnose and treat illnesses or injuries in patients. The different types of medical imaging are X-ray, computed tomography (CT) scans, magnetic resonance imaging (MRI), ultrasound, and nuclear medicine. Radiologists are experts in these different types of tests and can advise a primary care doctor on which test is most appropriate in a specific case. These doctors also assist primary care doctors in analyzing the images produced by these tests in order to determine next steps necessary for treatment.

A rheumatologist is a physician who has received extensive training in diagnosing and treating rheumatic conditions. Rheumatic conditions involve the joints, soft tissues, autoimmune system, vascular system, and connective tissues.Some of the conditions that rheumatologists treat are rheumatoid arthritis, ankylosing spondylitis, gout, sarcoidosis, vasculitis, and lupus. These are all conditions that involve a lot of pain and make mobility difficult. Rheumatologists use medications, such as analgesics, NSAIDs, steroids, DMARDs, infliximab, and adalimumab, as well as occupational therapy, in order to decrease pain and improve a patient's quality of life.

A surgical specialist is a physician who has additional training in a specific area of surgery.The American Board of Medical Specialties acknowledges the following surgical specialties: general surgery, thoracic and cardiac surgery, colon and rectal surgery, obstetrics and gynecological surgery, neurological surgery, ophthalmic surgery, oral and maxillofacial surgery, orthopedic surgery, otolaryngological surgery, pediatric surgery, plastic surgery, urological surgery, and vascular surgery.Some procedures are performed by more than one type of specialist. Also, some surgeons may choose to specialize in specific procedures within their specialty area. For example, a plastic and maxillofacial surgeon may specialize in performing rhinoplasty procedures.

Surgical oncologists play various roles in treating cancer. They can perform biopsies to determine if a tumor is cancerous or not. If it is, they're trained to remove the tumor, tissue, and in some cases, all or part of an organ or bodily structure where the cancer has spread. In addition to removing cancer, they can perform any reconstructive surgeries that may be necessary. Many surgical oncologists specialize in certain types of cancer, such as liver, lung or breast. Don't be afraid to ask them what they have the most experience treating. When looking for a doctor, it's important to know that general surgeons are also qualified to perform many of the same surgeries. However, surgical oncologists have specific training in recognizing and treating cancer, which some patients prefer.

A cardiothoracic surgeon is a doctor who performs surgery on the organs inside the chest - the heart and lungs - as well as on the great vessels.

Transplant surgeons are trained to transplant organs from donors, whether living or deceased, to the patients in need. This includes liver, lung, heart, intestine, pancreas and kidney transplants as well as tissue, bone marrow and cornea transplants. Kidney disease, diabetes, cystic fibrosis and serious infections are just a few reasons you might need a transplant. Your surgeon will consult with you prior to the operation for a pre-transplant evaluation and they will see you through your healing process to ensure you have no complications. Some surgeons get additional training and education on pediatric transplants to provide special care to children.

Trauma surgeons treat patients who come to emergency rooms and require surgery after any kind of accident. They know how to act quickly, assess the patient's condition, and decide on a course of action. They work fast to coordinate with other physicians and specialists in the hospital if needed, such as neurosurgeons and radiologists, so they can properly diagnose the injury and stabilize patients. Common trauma injuries include bleeding, burns, brain or other internal injuries, shock and loss of limbs. Because they treat patients in traumatic situations, they're also typically skilled in offering some level of emotional support to help the patient cope with confusion and grief that may result from their accident.

A urologist is a physician who specializes in diagnosing and treating conditions affecting the male reproductive system, as well as the urinary tracts of both males and females. These doctors cover the kidneys, ureter, urinary bladder, adrenal glands, urethra, and the male reproductive organs which include the testes, epididymis, vas deferens, seminal vesicles, prostate and penis. Some common disorders that urologists treat are urinary tract infections (UTI), stress incontinence, benign prostatic hyperplasia, kidney stones, erectile dysfunction, kidney cancer, prostate cancer, testicular cancer, and cystitis. These urological specialists also perform vasectomies and vasectomy reversals.

Interventional radiologists, also known as vascular radiologists, use minimally-invasive imaging techniques to diagnose conditions in your organs and blood vessels. For example, if you need an angiography (an x-ray of the arteries) to diagnose a blockage in your blood vessels, your doctor will refer you to an interventional radiologist. They can, if needed, perform an angioplasty to open up the blocked passage.They’re also trained to perform needle biopsies, insert stents, treat varicose veins and obstructions of the urinary tract (possibly due to kidney stones) and can help with dangerous postpartum bleeding. They treat various types of fibroids and embolization, which is a clot, air bubble or other blockage in the bloodstream. While the types of imaging procedures they perform are more invasive than x-rays done to identify broken bones, pain levels and recovery time are usually minimal.

Vascular surgeons treat and manage disorders in your veins, arteries and your lymphatic system to ensure blood circulation in your heart and in brain is the best it can be. They're well-versed on how your vascular system works with the rest of your body and they can treat conditions that may cause blockages or buildup. They can perform many of the same diagnostic testing as interventional radiologists can, such as angiography and MRIs. In addition to diagnosis, they provide critical care and treatment for aneurysms, artery blockages and trauma injuries that involve your veins. They can also help patients manage diabetes, blood pressure and cholesterol as well as treat artery disease. Treatment for more serious cases might include bypass surgery or surgery to remove plaque.