Women should not dye their hair during menstruation, because hair dyes contain certain chemical substances, and during menstruation, women’s physique is relatively weak, and the chemical substances can affect the patient through the skin, and such chemical substances do not exclude the presence of certain toxic properties, which will cause certain damage to women’s health. Therefore, it is recommended that women try not to carry out any activities harmful to their health during this period, and also need to pay attention to keep warm, pay attention to rest, not to carry out strenuous activities, and not to engage in too heavy physical labor. Diet also can not eat too cold food, in favor of health.