Anal fissure surgery takes about half an hour to an hour, depending on the patient’s condition and other factors. Anal fissure surgery is a common surgery in anorectal department, as anal fissure refers to the tearing of the skin tissue at the anal opening, the surgery is to clean up and excise the torn and ulcerated tissues that have formed the wound. It is a minor surgery that can be completed in half an hour if only local anesthesia is applied and the procedure is not complicated. Before the procedure begins, the skin needs to be prepared, after which local anesthesia can be administered with drugs such as procaine or lidocaine, and when the skin tissue in the anal area is unconscious, local tissue removal can be performed. Patients who are more sensitive to pain may need lumbar anesthesia or general anesthesia, and the whole time will be increased accordingly. To summarize, the time required for the surgery varies as each patient is different. Patients do not need to worry too much, they should take safety first, do not need to pursue the time too quickly, follow the doctor’s instructions, and actively cooperate with the treatment.