Human anal glands

An anal abscess is an infected cavity filled with pus found near the anus or rectum. Ninety percent of abscesses are the result of an acute infection in the internal glands of the anus. Occasionally, bacteria, fecal material or foreign matter can clog an anal gland and tunnel into the tissue around the anus or rectum, where it may then collect in a cavity called an abscess. An anal fistula also commonly called fistula-in-ano is frequently the result of a previous or current anal abscess. Normal anatomy includes small glands just inside the anus. Fistula is a tunnel that connects a clogged gland inside the anal canal to the outside skin.
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Anal Disorders

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Anal gland - Wikipedia

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Anal glands in all kinds of animals play a range of diverse functions - providing fat for preening feathers or waterproofing fur, generating distinct scent, even repelling predators. None of the resources I found about human anal glands ever mention their function. There's info or infections, location, treatment of problems related to them, but never a word about a role they might serve - if any. Are they vestigial organs without any role or do they have some evolutionary purpose? They are vital if not incredibly useful in many other mammals but not humans.
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Histoanatomy of anal glands.

The anal glands or anal sacs are small glands near the anus in many mammals , including dogs [1] and cats. They are paired sacs on either side of the anus between the external and internal sphincter muscles. Sebaceous glands within the lining secrete a liquid that is used for identification of members within a species.
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The anus is that part of the intestinal tract that passes through the muscular canal of the pelvis and anal sphincters. It is the final orifice through which stool passes out of the body. In adults, the anus is 4 to 5 centimeters long. The lower half of the anal canal has sensitive nerve endings. There are blood vessels under the lining, and in its mid portion there are numerous tiny, anal glands.
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