The term “menstruation” is generally used to refer to a woman’s period. The slight weight gain during menstruation may be related to hormonal effects in the body. During menstruation, most women experience sodium retention due to hormonal changes in the body, resulting in edema and slight weight gain. Usually after menstruation, the weight will gradually return to normal and there is no need to worry too much. During menstruation, women should not be overly concerned about weight changes and should remain physically and mentally happy. They should also pay attention to a proper diet and rest, and avoid overwork. Pay attention to menstrual hygiene, keep your private parts clean, change sanitary napkins frequently, and prohibit sexual intercourse during menstruation to avoid infection. You can eat more protein-rich meat and more fresh vegetables and fruits. If you are not feeling well, we recommend that you consult a doctor.