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What is Internal Medicine?

Internal medicine is a medical specialty in which doctors use scientific knowledge and clinical expertise to diagnose and treat adults with a wide range of health problems.

Who is an Internist?

An internist is a medical doctor who specializes in internal medicine. This discipline of medicine deals with a wide range of conditions that affect the body's organs. A key difference from family practitioners is internist only treat adults.

Care Provided by Internal Medicine

Internists provide treatment for:

  • Acute health conditions such as flu, strep throat, common cold, and pneumonia
  • Arthritis and rheumatic conditions
  • Blood disorders such as anemia and hemophilia
  • Cardiovascular conditions such as hypertension, heart failure, and coronary artery disease
  • Respiratory disorders such as chronic obstructive pulmonary disease and lung cancer
  • Digestive problems such as gastritis, inflammatory bowel disease, and gastric ulcers.
  • Immunologic disorders such as asthma and allergies
  • Infectious diseases such as FLU, covid-19 and cellulitis
  • Thyroid disorders
  • Neurologic conditions such as migraines and diabetic neuropathy
  • Mental health disorders, anxiety and depression

Subspecialties of Internal Medicine

Some of the subspecialties of internal medicine include:

  • Endocrinology
  • Rheumatology
  • Infectious diseases
  • Otorhinolaryngology
  • Gastroenterology
  • Nephrology
  • Neurology
  • Psychiatry
  • Dermatology
  • Ophthalmology
  • Gynecology
  • Pulmonary diseases
  • Cardiovascular diseases
  • Critical care medicine
  • Hematology
  • Oncology
  • Non-surgical orthopedics
  • Palliative medicine
  • Sleep medicine
  • Geriatrics
  • Rehabilitation medicine

Internal Medicine Diagnostic Tests

Diagnostic tests performed by internists include:

  • Screening tests for blood pressure, cholesterol, colorectal cancer, and gynecologic cancer
  • Mammogram
  • Rhinoscopy
  • Cardiac stress testing
  • Echocardiograms
  • Biopsy
  • Dynamic hormone testing
  • Bone density testing
  • Endoscopic ultrasound
  • Upper and lower endoscopy