Perineal swelling is a common gynecological symptom, this symptom is not specific, many gynecological diseases can cause perineal swelling symptoms. 1, vaginitis, vulvitis is the main cause of perineal swelling, mainly due to inflammatory stimulation caused by the vagina and vulva congestion, edema. 2, pelvic inflammatory disease is also one of the common reasons for the symptoms of perineal swelling, the patient at the same time accompanied by obvious The patient will be accompanied by obvious pain and discomfort in the lower abdomen and waist. Whether it is vaginitis or pelvic inflammatory disease, in the appearance of these symptoms at the same time, there will be obvious vaginal secretion abnormality, manifested as increased amount of secretion, color and odor abnormalities. 3, uterine and vaginal wall prolapse, is also the cause of perineal swelling symptoms. Mild prolapse has no obvious clinical symptoms, moderate and severe prolapse symptoms are more typical, and in severe cases, the swelling can be seen to come out, and the perineal swelling symptoms are more serious.