Effect of Red and Blue Light Irradiation on Wound Healing After Hemorrhoid Surgery

Inclusion Criteria: * Aged 18-75 years * Diagnosed with Grade III-IV hemorrhoids according to Goligher classification * Scheduled to undergo rubber band ligation of internal hemorrhoids + external hemorrhoidectomy * Willing and able to provide written informed consent * Able to comply with postoperative follow-up and treatment protocol Exclusion Criteria: * Psychiatric disorders or cognitive impairment * Uncontrolled chronic diseases: * Diabetes (HbA1c \>7.5%) * Hypertension (BP \>160/100 mmHg) * Coronary artery disease (NYHA Class III-IV heart failure) * Concurrent other hemorrhoid treatments (e.g., radiofrequency ablation/sclerotherapy) * Inability to complete follow-up (e.g., living too far away, no stable contact) * Concurrent anal disorders: * Perianal abscess * Anal fissure * Anal fistula * Hypertrophied anal papilla * Pregnancy or lactation (for female patients) * History of phototherapy allergy * Participation in other clinical trials within 3 months For registration, simply copy this structured list directly into the PRS system's eligibility section. The clear formatting will facilitate efficient review.