This study is a prospective clinical observation designed to evaluate the analgesic effect of wrist-ankle acupuncture in patients with different types of pain after perianal surgery, as well as its applicability. A total of 60 eligible postoperative patients were enrolled, with inclusion criteria including age 18-75 years, postoperative Visual Analog Scale (VAS) score ≥4, clear consciousness, and signed informed consent. Exclusion criteria included pregnancy, history of needle fainting, skin lesions at the wrist or ankle, severe systemic diseases, inability to cooperate with follow-up, or participation in other clinical trials. Patients were divided into two groups according to the nature of pain: Group A (sphincter spasm pain, n=30) and Group B (acute incisional pain, n=30). All patients received routine postoperative care (including intravenous flurbiprofen infusion, traditional Chinese medicine soaking, and pain education), and wrist-ankle acupuncture was administered when pain intensity (Verbal Rating Scale, VRS) reached ≥4. The acupuncture method involved superficial subcutaneous insertion in zones 1 and 6 of both lower limbs using disposable sterile needles (0.25 mm × 25 mm). Needles were retained for 0.5-1 hour, once daily, with the treatment course adjusted based on symptom relief. If the VAS score remained ≥4 at 30 minutes post-treatment, adjunctive analgesic medication was administered as prescribed. Observation indicators included postoperative VRS scores, reduction in VAS scores at 5 and 30 minutes after wrist-ankle acupuncture treatment, frequency of analgesic medication use within the first 3 postoperative days, and the Clinical Postoperative Urinary Retention (POUR) score at 24 hours post-surgery. By comparing data between the two groups, the analgesic effect of wrist-ankle acupuncture was analyzed, and the influence of postoperative pain on the occurrence of urinary retention was explored.

Inclusion Criteria:

• Aged between 18 and 75 years;
• Patients who underwent perianal surgery;
• Visual Analog Scale (VAS) score ≥4;
• Clear consciousness with the ability to articulate their sensations;
• Voluntary participation with signed informed consent.

Exclusion Criteria:

• Pregnant or lactating patients;
• Patients with a history of needle fainting or needle phobia;
• Patients with incomplete skin integrity at the wrist or ankle;
• Patients with comorbid systemic diseases, such as cardiac insufficiency or coagulation disorders;
• Patients unable to cooperate with follow-up;
• Patients currently participating in other clinical trials that may influence the outcomes of this study.

Based on a strict commitment to participant privacy protection, compliance with the terms of the ethical review protocol, and adherence to the sponsoring institution's policies, IPD from this study will not be shared at this time.