Anal pain is associated with many diseases.
1. Anal fissure, anal fissure will be accompanied by severe pain in the anus, tear-like pain in the anus after stool, at least half an hour to several hours to relieve.
2. Perianal abscess, perianal abscess will cause pain around the anus, mainly red, swelling, heat and pain. The more superficial, the more extensive the abscess, the more painful it will be.
3. Thrombotic hemorrhoids, sudden pain in the anus after stool or strenuous exercise, and thrombotic hemorrhoids can be palpable uplift.
4. Inflammatory external hemorrhoids, inflammation and edema of external hemorrhoids can cause pain.
5. Constriction of internal hemorrhoids or mixed hemorrhoids. The prolapse of internal hemorrhoids or mixed hemorrhoids will cause pain, usually accompanied by edema and thrombosis.
6. Anorectal pain, a chronic pain of the anorectum with no obvious cause of unknown cause, may be related to increased local nerve sensitivity.