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What is an internist?

Internal medicine doctors (or internists) are trained to treat adults of all ages. Their training allows them to diagnose and treat a wide range of health conditions and illnesses. But they don't treat infants or children, or practice obstetrics (speciality care for pregnant mothers). Sometimes, internal medicine is confused with family medicine. But the difference is that internists specialize in treating adults, while family medicine doctors treat people of all ages, from infants to adults. Internal medicine specialists complete a three-year residency in internal medicine after medical school. They may also go on to complete two to three more years of training in a subspecialty, such as sleep medicine, cardiology, geriatrics or infectious diseases.

An internist, or an internal medicine physician, is trained to diagnose and treat chronic medical conditions.

An internist is a physician trained to deal with a disease of the internal organs.

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