Washing your hair on the first day of menstruation is not good or bad, because during menstruation if it is in the hot summer, you can wash your hair and take a bath every day to keep it clean and hygienic, which is better for women’s bodies. If the menstrual period is in the cold winter, when washing your hair, pay attention to the room temperature to be appropriate, as well as the appropriate water temperature to avoid getting cold, after washing your hair quickly with a dry towel to wipe the water on your head, pay attention to warmth, blow dry your hair, as long as you do not catch a cold cold, there is no adverse effect. So women wash their hair or take a bath during their menstruation, according to their own family conditions or their own physical condition, they can choose to carry out cleanliness and hygiene. Women are generally relatively weak during menstruation, so if the water or room temperature is not properly controlled when washing hair or bathing, it may cause a cold, which can cause a reduction in menstruation and even cause menstrual discomfort.