Women with menstruation generally do not affect the washing of hair, but in the first 1-2 days or 1-2 days after the menstruation is almost clean, the best hair washing. Under normal circumstances, when women are menstruating, due to the decline in hormone levels and poor body resistance and immunity, it is easy to lead to fatigue, as well as cold and flu, affecting the normal menstruation. If women choose to wash their hair on the 3rd-5th day of their menstrual period when the amount of menstrual blood increases, it will easily lead to a decrease or increase in the amount of menstrual blood, which is not conducive to the normal menstrual period. In addition, women should also pay attention to proper rest during menstruation, avoid cold and flu, a light and nutritious diet, and avoid spicy and cold foods.