Anal muscle spasms are a common symptom of anorectal medicine and are usually caused by inflammation of the anus, cold or irritating fecal matter in the anal area. Excessive mental tension can also lead to abnormal function of the anal sphincter, which ultimately triggers anal muscle spasm. In addition, localized pulling of the muscle mucosa by anorectal diseases may also lead to anal muscle spasm. The obvious manifestation of anal muscle spasm is pain sensation and bloody intestinal peristalsis, and the pain is intermittent, and the recurrence of anal muscle spasm will trigger perianal infection and even abscess. Therefore, patients with anal muscle spasm should not eat spicy and stimulating food in daily life, eat more high-fiber food and fresh vegetables and fruits; take a deep breath to relax the whole body and relax the spirit; pay attention to keep warm; to develop the habit of regular defecation to keep the bowel movement smooth. Promptly go to the anorectal department, do anal fingerprinting and colonoscopy and other tests, timely standardized treatment.