Eyebrow tattooing is not allowed during menstruation because the body’s resistance decreases during menstruation and the blood clotting function is worse than during non-menstrual periods, so bleeding can easily occur. In addition, if you are going to have surgery, such as abdominal surgery or tooth extraction, you should avoid your menstrual period. During the menstrual period, you should take more rest and avoid straining. You should also pay attention to a light diet and avoid cold, spicy and stimulating foods. Pay attention to the cleanliness and dryness of the vulva to avoid gynecological inflammation, and avoid intercourse during menstruation to avoid infection of the uterine cavity.