If a woman has a bulging vaginal wall after the birth of her first child, this bulging symptom will not only not recover when she is pregnant with her second child, but will also get worse as the number of pregnancies increases. The main cause of vaginal wall dilatation and pelvic floor relaxation is pregnancy and childbirth. During pregnancy, the uterus enlarges significantly, which increases the pressure on the pelvic floor and leads to ligament laxity and reduced elasticity of the pelvic floor muscles, resulting in a series of pelvic floor relaxation symptoms. Therefore, the symptoms of vaginal wall dilatation and uterine prolapse are more pronounced in women who have given birth to a lot of children. Therefore, it is recommended to carry out timely postpartum repair treatment, especially for women with two children, and go to a postpartum rehabilitation center to repair the pelvic floor function after the child is full-term, in order to minimize the impact on daily life.