Women can do a moderate amount of physical activity during their menstrual period to promote the discharge of blood in the uterine cavity, but they should not engage in strenuous exercise. Cycling is now a popular form of aerobic exercise, which is good for enhancing cardiorespiratory function, accelerating fat burning and controlling weight. The speed and intensity of cycling and time can be controlled by yourself, women can consider cycling during menstruation, just be careful not to adjust the resistance when cycling too much, speed not too fast, intensity not too high, time not more than half an hour. If, during cycling, you feel a significant increase in vaginal bleeding or significant abdominal pain, you should stop.