In gynecology, the lower part of the body refers to the labia majora, labia minora, mons pubis, vagina, etc. If there are uncomfortable symptoms such as swelling, pain and itching, consider the possibility of gynecological inflammation or allergy. For example, gynecological inflammation such as vulvodynia, vaginitis and vestibular gland cysts may increase secretions, and because of the stimulation of secretions and the role of pathogenic bacteria, local redness, swelling and itchiness may occur, and if the skin is broken by excessive scratching, it may easily cause infection and pain. It is advisable to go to the hospital in time to have the vaginal discharge tested and treated with local medication according to the specific conditions of the test. Swelling, itching and pain can also occur when there is an allergy to the vulva. Common allergies are allergy to sanitary napkins, pads and new underwear.