After pregnancy, due to the increase of estrogen in the body thousands of times, then the vaginal mucosa will become extremely sensitive to the increase of estrogen, so there will always be a feeling of contraction, which is a normal phenomenon. It is advisable to keep the vulva clean after pregnancy because the secretions are relatively increased after pregnancy, wash the vulva with warm water twice a day. Due to the individual differences after pregnancy, the reaction of each person is different due to the hormone level, so some people may have a feeling of vulvar swelling and some may have vaginal contraction, mainly due to the effect of estrogen. In addition, if there is abnormal vaginal discharge, or if the discharge has a bad odor, or if the discharge is yellowish in color, it is an abnormal phenomenon, and you need to go to the hospital for a routine test of the white belt, and according to the results of the clinical intervention and treatment.