This study aims to investigate whether specialized red-blue light irradiation facilitates faster postoperative recovery and reduces complication rates in patients following perianal abscess surgery. A total of 222 eligible patients were randomly allocated equally into three groups (74 per group):①Routine Care Group: Standard wound care including cleansing and dressing changes；②Red Light Therapy Group: Routine care plus red light phototherapy；③Combined Red-Blue Light Therapy Group: Routine care plus concurrent red and blue light phototherapy.Wound healing time and incidence of complications were compared to assess postoperative recovery across interventions. The primary hypothesis posits that adjunctive phototherapy-particularly combined red-blue light irradiation-will significantly enhance wound healing, reduce edema and pain, and decrease complication rates (e.g.bleeding, urinary retention) compared to routine care alone.

Inclusion Criteria:

• Aged between 18 and 75 years;
• Clinical diagnosis of perianal abscess；
• Procedure: Radical resection with incision and drainage.

Exclusion Criteria:

• Concurrent anorectal disorders (hemorrhoids, anal fissure) or malignancies/infectious diseases；
• History of psychiatric disorders；
• Analgesic use within 7 days preoperatively；
• Coagulopathy or cardiac/hepatic dysfunction；
• Pregnancy or lactation；
• Contraindications to phototherapy；
• IBD-related perianal abscess.

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.