Generally speaking, underwear that is often worn should be washed 30 times and then thrown away. Underwear that is not often worn (no more than 1 time a week) is recommended to be changed once every six months. Even underwear that has never been worn should be thrown away after 1 year if it is not sealed.
Gynecological diseases. For women, we should be alert to gynecological diseases. Some usual living habits will have an impact on women's health. Not changing underwear is a big problem. If you don't change your underwear often, some bacteria will grow in your underwear. If women's resistance drops slightly, it is likely to lead to female genital inflammation and even more gynecological diseases. Be sure to change your underwear frequently and wash it separately from other clothes.
Urinary tract infection. If you don't change your underwear, it may cause urinary tract infection. Women's private parts are near the urethral orifice. There is a lot of mixture on underwear, which is very unsanitary. Change underwear to keep private parts fresh and hygienic. Women's private parts may have some secretions to keep the environment of women's private parts, but the urinary tract resistance is poor, which is easy to cause infection and is not conducive to human health. Women must pay attention to the hygiene of private parts to avoid these diseases.
Failure to change underwear may also lead to infertility.
Health tips. It is necessary for women to change their underwear every day. Due to some special circumstances, it may be too late to change it, and the longest time should not exceed three days. Some women will use pads to avoid soiling their underwear. In fact, pads are not suitable for common use, and some pads are airtight, which is more likely to breed bacteria. The use of underwear is also lifelong. It is best to change it once a quarter, that is, about three months. It is best to have special underwear during menstruation. Many people will use sanitary napkins to paste directly during menstruation.