Auntie towel usually refers to sanitary napkins, just changed down the sanitary napkin odor may be physiological phenomenon, may also be caused by gynecological inflammation, such as vaginitis, pelvic inflammatory disease, etc., should be timely to the hospital. ⒈ physiological factors. Such as sanitary napkins for a long time without replacement, do not pay attention to pubic hygiene cleaning, underwear is not fresh enough and other physiological reasons, resulting in the breeding of bacteria, which over time will cause the menstrual odor changes, resulting in the change of sanitary napkins have a foul smell. Peculiar factors:: (1) Vaginitis: caused by various kinds of vaginal infections. (1) vaginitis: caused by a variety of pathogenic infections, mainly manifested as abnormal vaginal secretions, vaginal itching, secretion of vaginal material will be accompanied by foul smell, and combined with menstruation, resulting in just changed the sanitary napkin has a foul smell. (2) Pelvic inflammatory disease: when the body’s immune function is lowered, exogenous pathogenic bacteria invade, resulting in inflammation. Often manifested as an increase in vaginal secretions, and exudes an unpleasant odor, just changed the sanitary napkin will have a foul smell. When there is just changed down the sanitary napkin smell situation, exclude physiological factors, should be timely to the hospital diagnosis and treatment, so as not to delay the condition.