The result of often not changing underwear may be the following: 1. The most common situation will cause infection in women’s pubic area, because women’s vagina and urethra secrete a lot of substances every day, most of which are waste substances of the organism and are often harmful but not beneficial to the human body. The secretions also contain a large number of bacteria and even microorganisms, and the vagina, urethra and anus are adjacent to each other, these parts are easy to occur infection, if you do not change your underwear often, there may be a large number of bacteria on top of the underwear reproduction is easy to cause infection; 2, can cause women to suffer from various inflammatory diseases, such as vaginitis, uterine inflammation pelvic inflammatory disease, etc., these problems themselves are not big but complications may lead to The consequences are more serious; 3, often do not change underwear may cause vaginal, urethra and other large odor, because there are too many bacteria on the underwear caused by the bacteria can break down the urethra vaginal secretions and thus produce odor.