More pronounced pain may occur during the perioperative period. Haemorrhoids grow in a specific location, whether inside the rectum or at the end of the rectum, where the body needs to eliminate food residues as long as it carries out its normal energy intake. This causes the patient to experience intense pain during bowel movements. In particular, it is difficult to ensure absolute cleanliness of the surgical wound, which can easily complicate infection and worsen the pain. The level of pain is relatively more pronounced after external haemorrhoid surgery.