After one month of anal fissure surgery, there is light blood on the stool paper, considering that the incision of the surgery has not healed completely. After surgery for anal fissure, it takes some time for the wound to heal, the wound healing time is related to the individual’s physical quality, generally it takes about half a month to one month, a few patients’ healing time will be prolonged, in addition to the dryness of stools will also affect the wound healing, which will make the initial healing of the wound tearing, slowing down the speed of healing. After anal fissure surgery, we should avoid large activities, the wound should be changed regularly, pay attention to diet after surgery, diet to light, avoid spicy food stimulation, in addition to develop a good bowel habit, avoid sitting and standing for a long time, regular review. Anal fissure surgery for one month, there is light blood on the stool paper, it is recommended that patients go to the hospital in a timely manner to review, listen to the doctor’s advice and guidance, which is conducive to the complete healing of the anal fissure surgery, and to reduce the recurrence of the disease.