Who is prone to anal fissures?

The incidence of colorectal diseases has always been at the forefront and is a common ailment, particularly prevalent among some young people and children. Anal fissure refers to a vertically split ulcer on the skin of the anal canal, with main symptoms of pain and bleeding. During bowel movements, the passage of stool through the affected area triggers severe pain, which persists for several hours afterward. In severe cases, the pain may not ease until the next bowel movement. The bleeding is mainly fresh blood, dripping during bowel movements or wiping with tissue afterward, and stops immediately after. Young people have higher sensitivity in their internal sphincter muscles, coupled with irregular diets and lifestyles, leading to more constipation and a higher incidence of the disease. Children's anal sphincter muscles are not yet fully developed, and their diets lack vegetables and coarse fibrous foods, resulting in coarser and harder feces, which also makes them prone to the condition. Women have weaker perineal sphincter muscles, especially during menstruation and pregnancy, when pelvic congestion and poor blood circulation, combined with the force used during childbirth, lead to ischemia and easy tearing of the anal canal, resulting in a higher incidence than in men.