Generally speaking, vaginal douching is not recommended, but can be done to wash the vulva, unless there are medical indications. Under normal circumstances, the vagina has the ability to self-purify, there are various flora in the vagina to regulate each other and maintain the acid-base balance of the vaginal environment. The normal range of vaginal pH (acidity and alkalinity) is 3.8 to 4.4, which is weakly acidic. If there is a reproductive tract infection, vaginal douching is not recommended. Repeatedly doing vaginal douching may destroy the vaginal pH and lead to an imbalance of the flora in the vagina, thus inducing certain gynecological inflammations. Therefore, if you have abnormal leukorrhea, vulvar itching, etc., it is recommended to go to the hospital in time to clarify the cause of the disease, and symptomatic treatment, do not blindly carry out vaginal douching.