Why does menstruation have swollen faces?

Women during menstruation, due to changes in hormone levels in the body, it may cause the body to show water and sodium retention, then it will show this kind of face swelling or systemic edema. This kind of situation is generally mild edema, do not need treatment, after menstruation clean, due to hormone levels normal, then this edema phenomenon naturally relieved. However, if the menstrual clean, this edema symptoms and did not improve, then this time you need to go to the hospital to do a check, mainly to see if there is no kidney disease. Because if there is abnormal kidney function, it may show edema. Women during menstruation, must pay attention to rest, do not exercise vigorously, prevent cold and fatigue, but also pay attention to maintaining the hygiene of the genitals, period can not occur sex life, shower time.