Analgesic pumps are commonly used in clinical practice for the analgesic management of acute pain, chronic pain patients or post-surgical patients, which are generally not harmful, but some patients may experience side effects such as local irritation of tissues, drug reactions, and effects on wound healing after use. 1. Local stimulation: when patients use subcutaneous buried analgesic pumps or extracorporeal analgesic pumps, the analgesic pump hose will be placed into the subcutaneous vein or epidural cavity, which will cause some stimulation to some patients’ local tissues. 2. Drug reaction: there are mainly morphine drugs and analgesic drugs inside the analgesic pump, morphine drugs can cause skin itching, nausea, vomiting, abdominal distension, constipation, and even respiratory depression and other side effects, and internal analgesic drugs have relatively few side effects due to small dosage. 3. Affecting wound healing: some patients using analgesic pumps may affect wound healing, and at the same time may lead to weaker bowel movements and may have difficulty in defecation. Analgesic pumps have a good effect on reducing patients’ postoperative pain, but it should be noted that analgesic pumps should be used strictly under the guidance of a doctor, and adverse reactions should be sought in a timely manner to the doctor’s treatment.