internal medicine

American  

noun

1. the branch of medicine dealing with the diagnosis and nonsurgical treatment of diseases, especially of internal organ systems.

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internal medicine British  

noun

1. the branch of medical science concerned with the diagnosis and nonsurgical treatment of disorders of the internal structures of the body

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internal medicine Scientific  

1. The branch of medicine that deals with the diagnosis and nonsurgical treatment of diseases in adults.

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Etymology

Origin of internal medicine

First recorded in 1900–05

Example Sentences

Dr Satish Koul, principal director and unit head of internal medicine at Fortis Hospital Gurgaon, says hospitals routinely see cases of dehydration, low blood pressure, kidney stress and heat exhaustion during extended heatwaves.

From BBC • May 28, 2026

But it’s attracting practitioners from internal medicine to endocrinologists.

From Barron's • May 21, 2026

Products may also be contaminated, notes Dr. Shaila Pai-Verma, an internal medicine doctor at a concierge practice in Chicago.

From The Wall Street Journal • Apr. 20, 2026

And in other categories, the school’s ranking has risen since 2020 — for example to seventh from 10th in internal medicine and sixth from 12th in pediatrics.

From Los Angeles Times • May 30, 2024

The Brigham accepted Farmer and Jim Kim into its prestigious residency program in internal medicine.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French