Pelvic floor laxity syndrome refers to the decline of the pelvic floor and pelvic organ support structures due to various reasons, resulting in a series of syndromes, including digestive pump symptoms (such as defecation difficulties), urinary symptoms (frequent urination, incomplete urination, etc.) and reproductive symptoms (mainly seen in women, such as uterine prolapse. However, since the discomfort caused by difficulty in defecation is more direct and obvious, patients with pelvic floor laxity syndrome often visit the anorectal department with the aim of solving the problem of difficulty in defecation. The exact cause of pelvic floor laxity syndrome is not clear, but it is related to the following factors. The first is congenital dysplasia of the pelvic floor muscles, the second is damage to the pelvic floor muscles (such as damage to the pelvic floor during childbirth and long-term increase in abdominal pressure in women), and the third is degenerative changes in the pelvic floor tissues with age. Under the long-term effect of these factors, the pelvic floor muscles and tissues become weak, and the supporting structures of the pelvic organs are relaxed or even displaced, which becomes the pelvic floor laxity syndrome. The main clinical manifestation of pelvic floor laxity syndrome is that the patient feels that the anal outlet is obstructed, and the stool can be normal, but it is not discharged smoothly, and it can be accompanied by a feeling of anal or perineal swelling. On physical examination, the anal sphincter is relatively relaxed, the anal canal is short, the anal canal is weak in appearance, and the perineal protrusion is more obvious when performing defecation movements. Because of the lack of specific symptoms and signs of pelvic floor laxity syndrome, and because many diseases can cause defecation difficulties, it is not easy to make a correct diagnosis of pelvic floor laxity syndrome. The diagnosis of pelvic floor laxity syndrome can be made by first ruling out spinal cord lesions, constipation due to colon factors, and large intestinal tumors, and then making a fecal imaging based on medical history, symptoms, and signs, and seeing the presence of multiple laxity lesions at the same time. This diagnosis is strongly supported by the presence of uterine prolapse, vaginal widening, and stress urinary incontinence in female patients. Treatment of pelvic floor laxity syndrome is divided into conservative treatment and surgical treatment. The conservative treatment is based on oral laxatives, such as the routine use of marenzole pills, fruit guide tablets, and nux vomica tablets, but the efficacy varies greatly among individuals and is not very good overall. Surgical treatment includes anterior rectal convexity repair, resection of long sigmoid colon and suspension of posteriorly tilted uterine fundus. The recent effect of surgical treatment is very good, but the long-term effect is average, and some patients can relapse a few months after surgery. The patient can recur in a few months after the surgery. The patient should actively exercise, strengthen the abdominal muscle training, and do more anal lifting exercises, which have certain preventive and auxiliary treatment effects on the disease.