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Down syndrome
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Teenager with Down syndrome karyotype; Down syndrome
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Down syndrome summary
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Down syndrome: Facts & Related Content

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News •

Noninvasive prenatal testing identifies twice as many Down syndrome cases as second-trimester serum screening • May 18, 2025, 11:05 PM ET (Medical Xpress)
Study finds increased risk of age-related cardiovascular diseases in individuals with Down syndrome • May 7, 2025, 4:43 PM ET (News-Medical)
'Down Syndrome' Filters Being Used to Promote Sexual Content • May 4, 2025, 1:42 AM ET (Newsweek)
In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis and connectivity • Apr. 25, 2025, 8:45 AM ET (Medical Xpress)
Bath child model with Down's syndrome selected by Burberry • Apr. 24, 2025, 3:23 AM ET (BBC)

Facts

Also Known As trisomy 21 • mongolism • Down’s syndrome

Photos

Teenager with Down syndrome
karyotype; Down syndrome
See All Images →

Related Topics and References

Topics

Key People

Gregg L. Semenza
American physician

Related Quizzes and Features

Quiz
A Yorkshire terrier dressed up as a veterinarian or doctor on a white background. (dogs)
A Visit with the Word Doctor: Medical Vocabulary Quiz
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
44 Questions from Britannica’s Most Popular Health and Medicine Quizzes
3d illustration human heart. Adult Anatomy Aorta Black Blood Vessel Cardiovascular System Coronary Artery Coronary Sinus Front View Glowing Human Artery Human Heart Human Internal Organ Medical X-ray Myocardium
Medical Terms and Pioneers Quiz