The symptoms of lower body pain in pregnant women generally occur in the middle and late stages of pregnancy, with the increase of pregnancy months, the symptoms become more and more obvious, leading to the emergence of such symptoms: 1, vulvar varicose veins, after the middle and late stages of pregnancy, the enlarged uterus compresses the inferior vena cava, causing poor blood circulation in the lower extremities, varicose veins in the vulvar area and causing obvious pain symptoms. 2, vulvar edema, local The painful symptoms are caused by poor blood circulation and obstruction of tissue fluid reflux, which leads to edema in the vulva and local nerve compression. 3. Some women wear inappropriate clothes during pregnancy, and underwear is too tight to compress the local area and cause poor blood circulation, which also easily leads to local friction damage and secondary infection, which also causes pain in the vulva.