The reason for the weight gain during menstruation is the change in the ratio of luteinizing hormone to kinetic hormone concentration, which causes the body to retain water. The weight gain can sometimes be as much as two kilograms, but the weight gain and discomfort will slowly disappear after the menstrual period, and the body will return to its original shape. You should pay attention to keeping warm during menstruation, avoid cold and cold stimuli, and prevent the invasion of cold evil. Pay attention to rest, reduce fatigue, increase nutrition, and enhance physical fitness. You should try to control violent mood swings, avoid strong mental stimulation, and keep your mood happy. You should try to control violent mood swings, avoid strong mental stimulation, and keep a happy mood. You should prevent excessive room strain and absolutely prohibit sex during your period. During menstruation, attention should be paid to the regulation of diet to avoid increased dysmenorrhea due to cold clotting and blood stasis. If you have heavy menstrual flow, you should not eat spicy and dry things to avoid heat forcing blood flow and more bleeding.