The term “great aunt” refers to menstruation. It is usually possible to take a bath during a woman’s menstrual period, usually in the form of a shower, and sitz baths are not recommended. Bathing during menstruation usually has no effect on the organism, but attention should be paid to the use of showers, mainly because during this period the female uterus is in a relatively open state, and the use of sitz baths may result in contact with external fluids, which can increase the risk of infection, which in turn can cause unwanted illnesses, such as endometritis, pelvic inflammatory disease, and so on. Therefore, women are allowed to take a bath during menstruation, but sitz baths are not recommended. In addition, it is recommended to take rest during menstruation, avoid overwork, maintain personal hygiene, and avoid sexual intercourse to minimize the occurrence of infections.