The main reasons for the pain that still occurs 1 month after hemorrhoid surgery include the following: 1. It is possible that the local scar formation after hemorrhoid surgery is inflammatory granuloma, which is more common in clinical practice and may cause some mild pain due to the stimulation of the surrounding area when the patient defecates or cleanses locally after surgery. 2. It is also possible that the hemorrhoid has relapsed or the residual hemorrhoid nucleus has not completely eliminated the pain. You can apply Ma Yinglong hemorrhoid suppository, local warm water sitz bath or apply potassium permanganate for sitz bath, these ways can effectively relieve the pain, for the pain is always not relieved, should promptly go to the anorectal department for review, find the exact cause and according to the cause of symptomatic treatment.