Specialty (medicine)

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A specialty (or speciality) in medicine is a branch of medical science. After completing medical school, physicians or surgeons usually further their medical education in a specific specialty of medicine by completing a multiple year residency to become a medical specialist.

History of medical specialization[edit | edit source]

To a certain extent, medical practitioners have always been specialized. According to Galen, specialization was common among Roman doctors. The particular system of modern medical specialities evolved gradually during the 19th century. Informal social recognition of medical specialization evolved before the formal legal system. The particular subdivision of the practice of medicine into various specialities varies from country to country, and is somewhat arbitrary.

Classification of medical specialization[edit | edit source]

Medical specialties can be classified along several axes. These are:

  • Surgical or internal medicine
  • Age range of patients
  • Diagnostic or therapeutic
  • Organ-based or technique-based

Throughout history, the most important has been the division into surgical and internal medicine specialties. The surgical specialties are the specialties in which an important part of diagnosis and treatment is achieved through major surgical techniques. The internal medicine specialties are the specialties in which the main diagnosis and treatment is never major surgery. In some countries Anesthesiology is classified as a surgical discipline, since it is vital in the surgical process, though anesthesiologists never perform major surgery themselves.

Many specialties are organ-based. Many symptoms and diseases come from a particular organ. Others are based mainly around a set of techniques, such as radiology, which was originally based around X-rays.

The age range of patients seen by any given specialist can be quite variable. Paediatricians handle most complaints and diseases in children that do not require surgery, and there are several subspecialties (formally or informally) in paediatrics that mimic the organ-based specialties in adults. Paediatric surgery may or may not be a separate specialty that handles some kinds of surgical complaints in children.

A further subdivision is the diagnostic versus therapeutic specialties. While the diagnostic process is of great importance in all specialties, some specialists perform mainly or only diagnostic examinations, such as pathology, clinical neurophysiology, and radiology. This line is becoming somewhat blurred with interventional radiology, an evolving field that uses image expertise to perform minimally invasive procedures.

Specialties that are common world-wide[edit | edit source]

Specialty Can be subspecialty of Diagnostic (D) or therapeutic (T) specialty Surgical (S) or internal medicine specialty (I) Age range of patients Organ-based (O) or technique-based (T)
Allergy and Immunology Paediatrics or Internal medicine Both I All O
Anaesthetics None T I or S All T
Pathology None D Neither All T
Cardiology Internal medicine T I Adults O
Paediatric cardiology Paediatrics T I Paediatric O
Cardiothoracic surgery General surgery T S Adults O
Child and adolescent psychiatry and psychotherapy None T I Paediatric O
Clinical neurophysiology Neurology D I All Both
Dermato-Venereology None T I All O
Emergency Medicine Anaesthetics T & D I All Both
Endocrinology Internal medicine T I Adults O
Gastroenterology Internal medicine T I Adults O
General Practice None Both Neither All ages Multidisciplinary
Geriatrics Internal medicine T I Geriatric Multidisciplinary
Gynaecology and obstetrics None T S All O
Health Informatics None T & D Neither All Multidisciplinary
Infectious diseases Internal medicine T & D I Variable Neither
Internal Medicine None T I Adults Neither
Interventional Radiology Radiology T & D Both All Multidisciplinary
Vascular medicine Internal medicine T I Adults O
Microbiology None D I All T
Nephrology Internal medicine T I Adults O
Neurology Internal medicine T I Adults O
Neurosurgery Surgery T S All O
Nuclear medicine None D & T I All T
Occupational medicine None T I Working age Multidisciplinary
Ophthalmology None T S All O
Orthopaedics General surgery T S All O
Oral and Maxillofacial Surgery Several T S All O
Otorhinolaryngology None T S All O
Paediatrics None T I Paediatric Neither
Paediatric allergology Paediatrics T I Paediatric O
Paediatric endocrinology and diabetes Paediatrics T I Paediatric O
Paediatric gastroenterology, hepatology and nutrition Paediatrics T I Paediatric O
Paediatric haematology and oncology Paediatrics T I Paediatric O
Paediatric infectious diseases Paediatrics T I Paediatric O
Neonatology Paediatrics T I Neonatal Neither
Paediatric Nephrology Paediatrics T I Paediatric O
Paediatric respiratory medicine Paediatrics T I Paediatric O
Paediatric rheumatology Paediatrics T I Paediatric O
Paediatric surgery General Surgery T S Paediatric O
Physical and Rehabilitation Medicine None T I Adults Multidisciplinary
Plastic, Reconstructive and Aesthetic Surgery General surgery T S All O
Pneumology Internal medicine T I Adults O
Psychiatry Internal medicine T I Adults T
Public Health None Neither Neither All T
Radiology None D & T I All T
Neuroradiology Radiology D & T I All Both
Radiotherapy (unknown) T Unknown Unknown T
General surgery None T S Variable T
Urology General surgery T S All O
Vascular surgery General surgery T S All O

List of specialties recognized in the European Union and European Economic Area[edit | edit source]

The European Union publishes a list of specialties recognized in the European Union, and by extension, the European Economic Area.[1] Note that there is substantial overlap between some of the specialties and it is likely that for example "Clinical radiology" and "Radiology" refer to a large degree to the same pattern of practice across Europe.

Anaesthetics Clinical chemistry Tropical medicine
General surgery Clinical biology Child psychiatry
Neurosurgery *Immunology Geriatrics
Obstetrics and gynecology Plastic surgery Nephrology
Internal medicine Thoracic surgery Infectious diseases
**Ophthalmology Paediatric surgery Public health and Preventive Medicine
Otorhinolaryngology Vascular surgery Pharmacology
Paediatrics Cardiology Occupational medicine
Respiratory medicine Gastroenterology Allergology
Urology Rheumatology Gastro-enterologic surgery
Orthopaedics General hematology Nuclear medicine
Pathology Endocrinology Accident and emergency medicine
Neurology Physical medicine and rehabilitation Clinical neurophysiology
Psychiatry Stomatology Maxillo-facial surgery
Clinical radiology Neuro-psychiatry Dental, oral and maxillo-facial surgery
Radiotherapy Dermato-venerology Podiatric Surgery
Laboratory medicine Dermatology Podiatric Medicine
Biological hematology Venereology General Practice
Microbiology Radiology

List of North American medical specialities and others[edit | edit source]

In this table, as in many healthcare arenas, medical specialties are organized into the following groups:

  • Surgical specialties focus on manually operative and instrumental techniques to treat disease.
  • Medical specialties that focus on the diagnosis and non-surgical treatment of disease.
  • Diagnostic specialties focus more purely on diagnosis of disorders.
Specialty Code Group Subspecialties Focus
Allergy and Immunology Allergic reactions, asthma, and the immune system
Anesthesiology AN, PAN Surgery[2] Pediatrics, Pain management, Intensive Care, Critical Care, Obstetrics and gynaecology, Cardiothoracic anesthesiology, Trauma Care, Pre- and Post-Operative Assessment and Care, Generalist (covers all the sub-specialties) Anesthesia
Cardiology Medicine Disease of the cardiovascular system
Cardiovascular surgery Surgery The operation of heart and major blood vessels of the chest.
Clinical laboratory sciences Diagnostic Application of diagnostic techniques in medical laboratories such as assays, microscope analysis.
Dermatology D, DS Medicine Dermatopathology, Mohs Surgery Skin and its appendages (hair, nails, sweat glands etc.).
Dietetics Food and nutrition
Emergency medicine EM Medicine
  • Disaster medicine
  • Emergency Medical Services
  • Hospice and palliative medicine
  • International Emergency Medicine and Global Health
  • Medical toxicology
  • Pediatric emergency medicine
  • Research
  • Simulation
  • Sports medicine
  • Toxicology
  • Ultrasound
  • Undersea and hyperbaric medicine
  • Wilderness Medicine
The initial management of emergent medical conditions, often in hospital emergency departments or the field.
Endocrinology Medicine The endocrine system (i.e., endocrine glands and hormones) and its diseases, including diabetes and thyroid diseases.
Family Medicine FM Medicine
  • Adolescent Medicine
  • Geriatric Medicine
  • Hospice and Palliative Medicine
  • Sleep Medicine
  • Sports Medicine
Continuing, comprehensive healthcare for the individual and family, integrating the biological, clinical and behavioral sciences to treat patients of all ages, sexes, organ systems, and diseases.
Forensic Medicine Medicine
Gastroenterology GI Medicine The alimentary tract
General surgery GS Surgery
  • Colorectal surgery
  • Gastrointestinal surgery
  • Transplant surgery
  • Trauma surgery
Geriatrics IMG Medicine[2] Elderly patients
Gynecology Female reproductive health
Hepatology Medicine The liver and biliary tract, usually a part of gastroenterology.
Infectious disease ID Medicine Diseases caused by biological agents
Intensive care medicine Medicine Life support and management of critically ill patients, often in an ICU.
Medical research Anatomy, Biochemistry, Embryology, Genetics, Pharmacology, Toxicology
Nephrology Medicine Kidney diseases
Neurology N Medicine Diseases involving the central, peripheral, and autonomic nervous systems
Neurosurgery NS Surgery Disease of the central nervous system, peripheral nervous system, and spinal column.
Obstetrics and gynecology OB/GYN Surgery[2]
Oncology ON Medicine Cancer and other malignant diseases, often grouped with hematology.
Ophthalmology OPH Surgery Retina, Cornea Diseases of the visual pathways, including the eyes, brain, etc.
Oral and maxillofacial surgery Maxfacs, OMS Surgery
  • Oral and Craniofacial surgery (Head and neck)
  • Facial cosmetic surgery
  • Craniomaxillofacial trauma
Disease of the head, neck, face, jaws and the hard and soft tissues of the oral and maxillofacial region.
Orthopedic surgery ORS Surgery hand surgery, surgical sports medicine, adult reconstruction, spine surgery, foot and ankle, musculoskeletal oncology, orthopaedic trauma surgery, pediatric orthopedic surgery Injury and disease of the musculoskeletal system.
Otorhinolaryngology, or ENT ORL, ENT Surgery Head and neck, facial cosmetic surgery, Neurotology, Laryngology Treatment of ear, nose, and throat disorders. The term head and neck surgery defines a closely related specialty that is concerned mainly with the surgical management of cancer of the same anatomical structures.
Palliative care PLM Medicine A relatively modern branch of clinical medicine that deals with pain and symptom relief and emotional support in patients with terminal illnesses including cancer and heart failure.
Pathology PTH Diagnostic Understanding disease through examination of molecules, cells, tissues and organs. The term encompasses both the medical specialty that uses tissues and body fluids to obtain clinically useful information and the related scientific study of disease processes.
Pediatrics PD Medicine Children. Like internal medicine, pediatrics has many subspecialities for specific age ranges, organ systems, disease classes, and sites of care delivery. Most subspecialities of adult medicine have a pediatric equivalent such as pediatric cardiology, pediatric endocrinology, pediatric gastroenterology, pediatric hematology, pediatric oncology, pediatric ophthalmology, and neonatology. deals with the medical care of infants, children, and adolescents (from newborn to age 16-21, depending on the country).
Pediatric surgery Surgery Treats a wide variety of thoracic and abdominal (and sometimes urologic) diseases of childhood.
Physical medicine and rehabilitation Or Physiatry PM&R Medicine Concerned with functional improvement after injury, illness, or congenital disorders.
Plastic surgery PS Surgery
  • Cosmetic surgery
  • Burn
  • Microsurgery
  • Hand surgery
  • Craniofacial surgery
Elective cosmetic surgery as well as reconstructive surgery after traumatic or operative mutilation.
Podiatry POD Surgery
  • Forefoot surgery
  • Midfoot surgery
  • Rearfoot surgery
  • Ankle surgery
  • Soft tissue leg surgery
Elective podiatric surgery of the foot and ankle, lower limb diabetic wound and salvation, peripheral vascular disease limb preservation, lower limb mononeuropathy conditions.
Proctology PRO Medicine (or Colorectal Surgery) Treats disease in the rectum, anus, and colon.
Psychiatry P Medicine The bio-psycho-social study of the etiology, diagnosis, treatment and prevention of cognitive, perceptual, emotional and behavioral disorders. Related non-medical fields include psychotherapy and clinical psychology.
Pulmonology Medicine The lungs and respiratory system. Pulmonology is generally considered a branch of internal medicine, although it is closely related to intensive care medicine when dealing with patients requiring mechanical ventilation.
Radiology R, DR Diagnostic and Therapeutic
  • Interventional radiology is concerned with using expert imaging of the human body, usually via CT, ultrasound, fluoroscopy, or MRI to perform a breadth of intravascular procedures (angioplasty, arterial stenting, thrombolysis, uterine fibroid embolization), biopsies and minimally invasive oncologic procedures (radiofrequency and cryoablation of tumors & transarterial chemoembolization)
  • Nuclear Medicine uses radioactive substances for in vivo and in vitro diagnosis either using imaging of the location of radioactive substances placed into a patient or using in vitro diagnostic tests utilizing radioactive substances.
The use of expertise in radiation in the context of medical imaging for diagnosis or image guided minimally invasive therapy. X-rays, etc.
Rheumatology RHU Medicine Autoimmune and inflammatory diseases of the joints and other organ systems, such as arthritis and other rheumatic diseases.
Stomatology Dentistry Diseases of the mouth
Surgical oncology SO Surgery Curative and palliative surgical approaches to cancer treatment.
Thoracic surgery TS Surgery Surgery of the organs of the thoracic cavity: the heart, lungs, and great vessels.
Transplant surgery TTS Surgery Transplantation of organs from one body to another
Urgent Care Medicine UCM Medicine Immediate medical care offering outpatient care for the treatment of acute and chronic illness and injury
Urology U Surgery Urinary tracts of males and females, and the male reproductive system. It is often practiced together with andrology ("men's health").
Vascular surgery VS Surgery The peripheral blood vessels – those outside of the chest (usually operated on by cardiovascular surgeons) and of the central nervous system (treated by neurosurgery)

Future medical specialties[edit | edit source]

Due to the large decline in men's use of healthcare services and facilities, there may be a future in creating a specialty dedicated exclusively to men's health and well being. It would be a counterpart to gynecology and would be most aptly named andrology.

Physician compensation[edit | edit source]

The mean annual salary of a medical specialist is $175,011[3] in the US, and $272,000 for surgeons. However, because of commodity inflation, increasing negligent costs, steep price rise of rental, the annual salary range of a medical specialist varies and is not rising as fast as other professional pay. Often, especially in the United States, physicians practice in groups of specialists within a particular medical specialty. These practice groups are often formed to help reach economies of scales in rental, insurance and staff costs as well as other benefits of practicing with other professionals and are typically governed by various legal documents.

The table below details the average range of salaries for physicians of selected specialties as of July 2010. Also given in the average number of hours worked per week for full-time physicians (numbers are from 2003).

Specialty Median salary (USD) Average hours


Average salary/hour (USD)
Anesthesiology 331,000 to $423,507 61
Dermatology 313,100 to $480,088 45.5 103
Emergency medicine 239,000 to $316,296 46 87
Cardiac Surgery 218,684 to $500,000 55
Family practice 175,000 to $220,196 52.5 58
Internal medicine 184,200 to $231,691 57 58
Neurology 213,000 to $301,327 55.5 93
Obstetrics and Gynecology 251,500 to $326,924 61 83
Ophthalmology 150,000 to $351,000 47
Orthopedic surgery 397,879 to $600,000 58
Otolaryngology 191,000 to $393,000 53.5
Pathology 239,000 to $331,842 45.5
Pediatrics 160,111 to $228,750 54 69
Psychiatry 173,800 to $248,198 48 72
Radiology (diagnostic) 377,300 to $478,000 58
Surgery (general) 284,642 to $383,333 60
Urology 331,192 to $443,518 60.5
Neurological surgery 350,000 to $705,000 132
Plastic surgery 265,000 to $500,000 114
Gastroenterology 251,026 to $396,450 93
Pulmonology 165,000 to $365,875 72

According to a 2010 study, physician and surgeon median annual income was $166,400.[4]

Specialties by country[edit | edit source]

Australia and New Zealand[edit | edit source]

Specialty training in Australia and New Zealand is overseen by the specialty colleges:

Canada[edit | edit source]

Specialty training in Canada is overseen by the Royal College of Physicians and Surgeons of Canada

India[edit | edit source]

Specialty training in India is overseen by the Medical Council of India, which is responsible for recognition of post graduate training and by the National Board of Examinations. And education of Ayurveda in overseen by Central Council of Indian Medicine (CCIM), the council conducts u.g and p.g courses all over India, while Central Council of Homoeopathy does the same in the field of Homeopathy.

United States[edit | edit source]

There are three agencies or organizations in the United States that collectively oversee physician board certification of MD and DO physicians in the United States in the 26 approved medical specialties recognized in the country. These organizations are the American Board of Medical Specialties (ABMS) and the American Medical Association (AMA); the American Osteopathic Association Bureau of Osteopathic Specialists (AOABOS) and the American Osteopathic Association; the American Board of Physician Specialties (ABPS) and the American Association of Physician Specialists (AAPS). Each of these agencies and their associated national medical organization functions as its various specialty academies, colleges and societies.

Certifying board National organization Physician type

All boards of certification now require that medical practitioners demonstrate, by examination, continuing mastery of the core knowledge and skills for a chosen specialty. Recertification varies by particular specialty between every seven and every ten years.

Other uses[edit | edit source]

In the U.S. Army, the term "medical specialist" refers to occupational therapists, physical therapists, dietitians and physician assistants, also known as allied health professionals. Also included in the term "medical specialist", but not in the term "allied health professional" are EMT/combat medics.[citation needed]

Satisfaction[edit | edit source]

A survey of physicians in the United States came to the result that dermatologists are most satisfied with their choice of specialty followed by radiologists, oncologists, plastic surgeons, and gastroenterologists.[5] In contrast, primary care physicians were the least satisfied, followed by nephrologists, obstetricians/gynecologists, and pulmonologists.[5]

Specialty Overall satisfaction
Dermatologist 80% 71% 93%
Radiologist 72% 69% 82%
Oncologist 70% 55% 79%
Gastroenterologist 69% 52% 80%
Ophthalmologist 67% 55% 79%
Infectious disease/HIV physician 66% 54% 73%
Plastic surgeon 66% 53% 82%
Anesthesiologist 65% 63% 70%
Orthopedic surgeon 65% 47% 83%
Psychiatrist 65% 58% 67%
Rheumatologist 65% 53% 66%
Emergency medicine physician 63% 65% 56%
Urologist 63% 47% 78%
Cardiologist 62% 46% 75%
Pediatrician 62% 51% 61%
Diabetes specialist/Endocrinologist 61% 45% 68%
Neurologist 60% 49% 63%
General surgeon 58% 44% 60%
Nephrologist 57% 45% 55%
Obstetrician/Gynecologist 57% 50% 53%
Pulmonologist 57% 45% 52%
Primary care physician 54% 48% 43%

See also[edit | edit source]

Notes and references[edit | edit source]

  1. "Directive 2005/36/EC of the European Parliament and of the Council of 7 September 2005 on the recognition of professional qualifications". European Parliament and Council. Retrieved 19 April 2011.
  2. 2.0 2.1 2.2 – new grouping of the medical specialties
  3. Cite error: Invalid <ref> tag; no text was provided for refs named ibmdllc
  4. Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition, Physicians and Surgeons, on the Internet at (visited November 01, 2013).
  5. 5.0 5.1 Medscape Physician Compensation Report: 2011

Portions of content adapted from Wikipedia's article on Specialty (medicine) which is released under the CC BY-SA 3.0.

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