Resume:

Early detection and treatment of common and frequently-occurring diseases in anorectal surgery, and rectal cancer, and treatment of mixed hemorrhoids, anal fissure, anal fistula, rectal mucosal prolapse, and constipation; have unique insights into rare anorectal diseases such as sacral cysts, pilonidal cysts, anorectal injury, anal incontinence, and suppurative fasciitis. Surgical characteristics: minimally invasive anal operation, no pain during the operation.