Imperforate anus

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Science and technology

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What Wikipedia says

An imperforate anus or anorectal malformations (ARMs) are birth defects in which the rectum is malformed. ARMs are a spectrum of different congenital anomalies which vary from fairly minor lesions to complex anomalies.

Excerpt from the Wikipedia article “Imperforate anus”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Marc A Levitt, Alberto Peña. Anorectal malformations. Orphanet Journal of Rare Diseases. 2, 33. 2007. PMID 17651510., CC BY 2.0, via Wikimedia Commons.