Postpartum vaginal relaxation has a great relationship with the mode of delivery, postpartum vaginal relaxation for many reasons, the fetus is too large (macrosomia), the natural childbirth causing injury; second trimester abortion caused by vaginal injury; multiple delivery; postpartum lack of exercise; postpartum recovery blind to lose weight, do not pay attention to nutrition or too tired and lead to pelvic poor recovery of muscles.
After natural childbirth women, because the vagina is fetal delivery channel, baby born general head diameter of about 10 cm, that vaginal delivery should be expanded to 10 cm, normal vaginal diameter is 2. 5 cm, after the birth of the child’s extrusion, vaginal expansion obvious, muscle and hymen scars were completely destroyed, the elasticity dropped significantly.
But not only natural childbirth will lead to vaginal relaxation, in childbirth, pelvic muscles and ligaments will be fully extended, for the baby’s birth to prepare the birth canal. Thus even if the cesarean section, there will be vaginal relaxation phenomenon.