Nowadays, clinical anal fistula can be divided into low anal fistula and high anal fistula, if it is low anal fistula, need to carry out simple incision, but in most cases, after seven days of severe inflammation oozing period usually does not hurt, but there are some patients will have inflammation aggravation, it is possible that the pain will become longer, the pain may be further aggravated; if it is a high anal fistula, it needs to be treated with different Surgical methods are used for treatment, and in the case of hanging thread therapy, the pain will last for 5-12 days, after which the symptoms will be reduced. However, there are patients with different physical qualities, the pain time will be extended or shortened, if the patient’s pain time is a little long, the patient needs to go to the hospital in time to deal with, you can choose to follow-up examination and treatment.