If ovulation and sexual excitement are excluded, swelling of the pubic area is an abnormal pathological symptom. Chronic inflammation of the genital organs is the main cause of swelling, resulting in a pathological reaction of the genital organs. When women suffer from vulvodynia, vaginitis, cervicitis and pelvic inflammatory disease, the pathogens invade the genital organs, resulting in congestion, swelling and pain in the genital organs. In addition, poor vulvar hygiene or suffering from urinary tract infection can also lead to swelling and tingling sensation in the vulva. There is also the stimulation of oxalic acid. Due to dietary habits, the urine contains too much uric acid, which crystallizes and irritates the vaginal and vulvar epithelium, producing a swelling and burning sensation. In addition, due to excessive intake of spicy and irritating foods in the diet, the vagina and vulva are irritated and a swelling sensation occurs. For some sexually transmitted diseases, it can also cause infection and swelling of the vulva in women.