Itching at the vaginal opening is a common manifestation of local infection in the perineum of women. In this case, patients should pay attention to strengthening personal cleaning of the vulva and perineum, as well as pay attention to sexual hygiene, and should strengthen local cleaning before and after sex to avoid symptoms of urinary tract infection. Some patients are due to the lack of attention to personal hygiene or sexual hygiene, and will soon transition from itching in the vulva and perineum to rapid transition to stinging and burning sensation in urination, frequent urination, urinary urgency, and perhaps even carnal hematuria, at which point there is a further shift from perineal infection to urinary tract infection. In terms of treatment, in addition to life, patients are advised to practice personal hygiene and cleanliness, and if symptoms of urinary tract infection appear, patients are advised to take oral cephalosporins, quinolones, and fosfomycin anti-inflammatory drugs, and the duration of oral medication is generally determined by the severity of symptoms and the severity of the infection. For symptoms such as recurrent urethral itching or perineal itching and urinary tract infection after sexual intercourse, patients are advised to consult a urology specialist to do a simple physical examination to clarify whether there are common urological diseases such as urethral ectopia between the urethra and vaginal orifice, hymenal umbilicus, hymenal malformation and urethral hymenal fusion.