Anus is a part of human gastrointestinal / digestive system. A nature creation like a guard at the end of humans gastrointestinal tract guided by external & internal sphincter at its lower edge.
Comparison may be done with crycoesopharyngeal sphincter at esophagus or the labialis at lips of mouth. Anoitis/anal inflammation could be due to: Anal Trauma Direct physical trauma Anal sexual perversions A route for smuggling Anal instrumentation Anal infections includes : Bacterial/ viral/ fungal/ protozoal/ helmenthic/ sexual et fissures Inflammatory secondary to inflammatory bowel disease ( ulcerative colitis / Crohn's disease / Tuberculosis & other geanulomatous diseases Anal fissures PerI anal abscess / peranal glandular infections /abscess Malignancies / carcinomas of anal canal primarily /could be secondary fissures Secondary to normal physiological illness - A…
