Women’s perineum is a special part of the body, the urethra and vaginal opening are in this position, the anus is also very close, the monthly menstrual flow is from the vagina, sex is also through the vagina, giving birth to a child is also through the vagina, so the perineum is the most susceptible to infection of the part. The vulva is the most vulnerable area to infection. The main areas to be cleaned are the mons veneris, the labia majora and minora on both sides, and the gap between the labia majora and minora, as well as the area covered by pubic hair. It is not recommended to routinely wash the anus during normal perineal cleansing, as this tends to bring the E. coli bacteria from the anus into the vagina, which can cause infections instead. When you go to the toilet, it is recommended that you wipe the perineum first and then the anus to avoid cross-infection.