A bulging posterior wall of the vagina may lead to thinning of the stool and may also cause symptoms such as constipation and difficulty in passing stools. Posterior vaginal wall bulge refers to rectal bulge, which is often accompanied by uterorectal depression. In the case of mild dilatation, the patient may not normally experience any significant discomfort, but may notice a thinning of the stool. As the condition progresses, the bulging of the posterior vaginal wall becomes more and more severe, and an intestinal hernia may form, so that the patient may experience constipation and difficulty in defecation. If a woman has bulging of the anterior or posterior vaginal wall, and the symptoms are not very serious, she should usually do more anal retraction to increase the strength endurance and support of the pelvic floor muscles, and relieve the discomfort. However, if the symptoms are severe, surgery may be needed, such as anterior and posterior vaginal wall repair. It is recommended that patients with posterior vaginal wall dilatation, specialist consultation and examination to clarify the treatment.