During menstruation, you will not lose weight on your own, but rather, because of water and sodium retention during menstruation, it will lead to edema in the limbs and make you look slightly fatter from a visual effect. During menstruation, when the body produces the least amount of estrogen and progesterone, the hormonal changes lead to water and sodium retention, resulting in edema of the face and limbs, which visually makes you look slightly fatter. With the end of the menstrual period, the secretion of estrogen and progesterone in the body increases, and the water accumulated in the body during menstruation will be discharged slowly, and this body swelling will gradually disappear, so there will not be a significant change in weight before and after menstruation. Some women choose to lose weight during menstruation, thinking that this phase will achieve a better result. But the menstrual period has its own special and sensitive nature, this period can only do some gentle, soothing exercise, some excessive exercise can not be done. In addition, during the menstrual period due to pelvic congestion, many women will have lower abdominal discomfort, so try not to choose to lose weight during the menstrual period.