During the period of menstrual blood, you can have a short period of cycling in your daily life. But if it is physical exercise or cycling in the gym, you can suspend it for a while and wait until the menstrual blood is completely clean before doing physical exercise. Because the body’s immunity is lower during menstruation and physical strength is reduced, a large amount of exercise will affect the body’s recovery and will also lead to an increase in menstrual blood and easily induce other diseases in the body. In addition, during the use of sanitary products, long time riding a bicycle leads to vulvar friction, which can easily induce inflammation due to vulvar hot flashes. During menstruation, you should rest and keep your vulva clean and dry. When menstrual blood decreases, you can wash your vulva with warm water and change your underwear and sanitary products regularly.