Anal fissure in children is a common condition in children from 6 to 24 months old, less common in older children. The disease often makes children uncomfortable because anal fissures cause pain and bleeding, but most cases are self-healing and can be treated at home. If the symptoms do not improve or the fissure does not heal for a long time, it can become chronic, so parents need to take their children to see doctors and receive care under their guidance.