Dancing is not recommended for women during their menstrual period, because women should not do strenuous activities during their menstrual period, and dancing is a strenuous activity. Usually, when women are menstruating, their bodies are weak, they often feel fatigued, and their ability to fight diseases is reduced. The pelvic cavity is congested and the endometrium is shedding, so if you do strenuous activities, it is easy to increase the amount of menstruation and prolong the period, and in serious cases, endometriosis can occur. In serious cases, endometriosis may occur, which may lead to menstrual pain in the future and may even lead to infertility. Therefore, it is best for women not to dance when they have their periods, and to take more rest and keep their abdomen warm.