The fact that it still hurts a little bit after having a bowel movement 12 days after hemorrhoid surgery may be due to incomplete wound healing, wound infection, dietary factors and other reasons. 1. The wound is not completely healed: after hemorrhoid surgery, the wound recovery time is generally longer, if the wound is not completely healed in the case of stool, may pull the wound, which triggered pain. This situation usually do not need to do special treatment, it is recommended to wash the wound in time after the stool, keep the wound dry and clean. 2. Wound infection: hemorrhoid surgery will leave a wound, and in the wound recovery period defecation, due to more food residue and harmful substances in the stool, if the stool is not cleaned in a timely manner, it is likely to lead to bacterial invasion, thus triggering wound infection. At this time, the stool will stimulate the wound, appear a little painful feeling. 3. Dietary factors: If the patient consumes stimulating foods during the wound recovery period, such as chili peppers, garlic, scallions, etc., it may lead to stimulation of the wound during defecation, resulting in a painful sensation. This symptom may also be caused by other reasons, it is recommended that patients eat a light diet, drink plenty of water and pay attention to the cleanliness of the wound. If the symptoms of painful defecation do not improve for a long time or even aggravate, it is necessary to consult a doctor in time to find out the cause of the disease and give treatment.