An anal fissure is a small tear in the lining of the anus, typically caused by passing hard or large stools. These tears can result in pain, bleeding, and discomfort during or after bowel movements. Although they are common and usually heal on their own, anal fissures may require medical treatment.
Anal fissures can affect individuals of all ages, including infants, and are often mistaken for hemorrhoids. The fissure usually occurs in the posterior midline of the anus, where blood flow is lowest and healing tends to be slower.
While anal fissures are not dangerous, they can be very painful and affect quality of life. If the tear does not heal within 6–8 weeks, it is considered chronic and may involve underlying muscle spasms that impair healing. Identifying and treating fissures early can prevent prolonged symptoms and reduce the need for invasive procedures.
it’s probably not just your imagination.