Its painful if it is done poorly, or if the receiving partner isn't really interested in having anal sex. The anus is full of nerve endings - it is very very. If you've been having difficulty getting or sustaining erections, talk about it with your doctor This article describes four disorders that cause anal pain and irritation ages of 20 and 40, and men are affected more often than women. Whether you practice anal intercourse or have any history of anal trauma. If you experience severe pain or bright red bleeding during or after During and after childbirth, women are at risk for anal fissures due to straining during delivery . your risk of getting one by taking the following preventive measures: to the area, such as vaginal delivery, anal sex, or passing hard stool.