Gastroenterologists are medical doctors who specialize in the
diagnosis and treatment of diseases of the digestive system, such as hepatitis,
ulcerative colitis, Crohn's disease, and colon or rectal cancer.
Gastroenterologists may perform many specialized tests, such as
endoscopy, to diagnose or treat diseases. When necessary, they may consult with
surgeons. Gastroenterologists may further specialize in treating people in
certain age groups, such as pediatric gastroenterologists, who only treat
Gastroenterologists can be board-certified by the Board of Internal
Medicine, which is recognized by the American Board of Medical
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