Normally, it is more hygienic for women to change their underwear once a day. Panties as women’s intimate apparel need to pay great attention to its hygiene, due to hormonal changes in the body and the impact of daily life, the female organism discharges secretions, urine, fecal residue left in the panties will make it become moist, along with the passage of time will make it appear mildly contaminated, prone to bacterial growth, which may increase the probability of gynecological diseases and other problems. Therefore, it is recommended that women in their daily lives will be changing underwear to do a day change, timely cleaning and drying, to minimize the impact of local stimulation on the body. When abnormalities or other symptoms occur, consult a doctor in a timely manner to identify the cause of the disease and carry out targeted treatment or therapy.