You should not exercise vigorously during menstruation because vigorous exercise during menstruation will promote blood circulation leading to vasodilation. Strenuous exercise will further lead to excessive menstruation, vaginal bleeding, abdominal pain, back pain and other symptoms, and in severe cases will affect the future menstrual cycle and menstrual volume. It is not impossible to exercise during menstruation, but you can do soothing exercises such as walking, gymnastics, tai chi and other light exercises according to your body condition. You should choose a time when you are comfortable and have less vaginal bleeding, and pay attention to hydration before and after exercise. If you experience discomfort such as increased vaginal bleeding or other physical pain during exercise, you need to stop exercising immediately. Heavy physical work or degree of strenuous exercise should not be done, such as playing ball, running, wrestling, etc. Strenuous exercise can be done after the end of menstruation.