There are several reasons for vaginal swelling and pain in women: First, for married women it may be caused by vaginal inflammation, especially after having sex. Bacteria and viruses infect the vagina, causing the mucous membrane of the vaginal wall to become congested and swollen resulting in vaginal swelling and pain. Secondly, in postmenopausal women, due to the decline of ovarian function, the decrease of hormone level, the atrophy of vaginal wall and the thinning of mucous membrane, which makes it easy for germs to invade, resulting in inflammation causing vaginal dryness and swelling. Third, urinary tract infection, caused by cold or lack of attention to local hygiene, causes urinary tract infection, frequent urination, painful urination, urgent urination, vaginal swelling and pain. It is recommended to do gynecological examination, vaginal secretion examination and urinary routine and other related examinations, and actively carry out treatment under the guidance of doctors according to the examination results. Pay attention to pubic hygiene, keep the vulva clean and dry, and wash it with warm water.