Due to the special physiological characteristics of women, the anus, vagina, and urethra are concentrated, each with different elimination functions. Infection can occur if not cleaned properly. According to statistics from the World Health Organization, uncleanness of the lower body accounts for about 50% to 60% of inflammation of the female urinary tract and reproductive tract, and the most effective way to prevent it is to clean properly.

The skin of women’s private parts has deeper and more wrinkles. They must be cleaned in time after each urination and defecation to avoid irritating the skin, causing local skin itching, or aggravating hemorrhoids. Zhu Lan, chief physician of the Department of Obstetrics and Gynecology at Peking Union Medical College, reminds women that, especially after urinating, if they are not wiped dry in time, the residual urine will make the underwear very wet, providing a "suitable" breeding environment for various bacteria. This increases the risk of infection in the fragile urinary tract and reproductive system. In addition, be sure to wipe "from front to back" when wiping.

In addition, there is also a lot of knowledge in what kind of paper to choose to wipe the private parts. Zhang Dai, deputy chief physician of the Department of Obstetrics and Gynecology at Peking University First Hospital, believes that wet wipes are indeed more helpful in removing dirt and are suitable for wiping the anus after defecation, but wiping the urethra is not recommended. Nowadays, many wet wipes are added with chemical ingredients such as drugs or sterilization. Firstly, they will destroy the natural ecology of the vagina. Secondly, after wiping with wet wipes, there will still be a problem of moisture near the urethra, which is far less safe than ordinary toilet paper.