Medical history: history, now the bowel movement is not smooth, difficult to get out, 2-3 days / time, with sacrococcygeal drop; fecal quality dry hard moderate, no mucus pus blood, no dry stone fecal mass; no abdominal distension, abdominal pain. Physical examination: abdomen is flat and soft, no intestinal shape, no hard masses are palpated; intestinal sounds 3-5 times/minute. Perianal truncation: no perianal skin erythema, no eczema abnormalities; no swelling at the anal verge, no scarring within the anal verge; the size of the anus was appropriate, finger diagnosis showed no abnormal sphincter function, no abnormal reflexes in anal diastolic function, no masses or hard nodes were palpated in the anal canal, the distal rectal mucosa at the anorectal junction was loose and bulging, and a semi-elliptic cavity with a diameter of about 2.0 cm was bulging toward the sacrococcyge, and the proximal rectal mucosa of this bulging cavity The proximal mucosa of this dilated cavity was overlapped and intertwined, forming an obvious narrow ring, which could allow the belly of the index finger to pass through and stretch when the top was entered upward; the anorectal angle became significantly smaller. Proctoscopically, the distal mucosa was flaccid and locally red, with a small amount of exudation and no ulceration; the distal rectal column was hypertrophied and thickened, with no local mucosal color abnormalities; no abnormalities were seen at the anal canal. The rest was not investigated. Diagnosis: intractable constipation – intra-rectal mucosal overturning – prolapse of rectum – hypertrophy of distal rectal column Treatment: 1. regular diet, reduce the amount of staple food at dinner and enter a coarse fiber, light diet; 2. pelvic floor functional exercises, such as lifting and retracting the abdomen, 3 minutes/time, 50 times/minute; 3. local hot water fumigation and sitz bath before and after defecation; 4. prilucapride succinate tablets 1mg/time 1 time/day, short term + vitamin B 5.Chinese herbal soup: 15g Citrus aurantium, 30g Atractylodes macrocephala, 15g Chen Pi, 10g Radix Bupleurum, 10g Radix Bupleurum, 6g Phellodendron, 3g Decoction, 400ml, morning and evening, review after 1 week; 6.Tonic Zhong Yi Qi Pill, 3g/time, 2 times/day, for more than 6 months; 7.If necessary, we suggest to check colon transport test + defecography + perianal muscle electrophysiology. Physiological determination, after this situation can be sacral anesthesia under sacral anesthesia to perform rectal protrusion, distal endoplasty pph and lower rectal column suture.