If you have gynecological diseases, you can wash your vulva by using sodium bicarbonate solution, which is more effective for improving vulvar itching and other symptoms, but it is not recommended to use sodium bicarbonate solution directly, it is better to dilute sodium bicarbonate solution to a concentration of 2%-3% to wash your vulva. If you do not have gynecological diseases, you do not need to use bicarbonate of soda solution to clean the vulva. If you wash your vulva with sodium bicarbonate solution often, it will disrupt the acid-base balance in the vagina and easily damage the vaginal mucosa. Long-term use will cause dysbiosis, which will lead to vaginitis.