Perianal canker sores are the Chinese name for perianal abscesses, a disease that requires surgery to cure completely. Perianal abscess is caused by the presence of a primary internal opening near the anal sinus above the dentate line of the anus, and the entry of pathogenic bacteria from the internal opening leads to septic infection of the fatty tissue around the anus. The main treatment is surgery to cut open the abscess cavity, draw out the pus, further expand the excision of the internal opening on the basis of the incision, and treat the internal opening in order to completely cure this disease. Surgery is the only way to cure perianal abscess, so if you have this disease, you should have surgery as soon as possible to avoid delaying the disease.