It is a normal physiological phenomenon for women to experience abdominal swelling during menstruation. The cause of abdominal swelling during menstruation requires clarification of the nature of women’s menstruation, which is caused by the cyclical shedding of the endometrium of the uterus. During menstruation, the endometrium will shed to a certain extent due to changes in hormone levels in the body and its own thickness, and in the process of shedding the endometrium, there will be a certain feeling of falling and swelling. If the pain is obvious, it is likely to be influenced by the external environment, aggravating this symptom. If you get cold or strenuous exercise during menstruation, emotional changes may lead to a certain degree of abnormal contraction of the uterus, which may cause an increase in pain. Brown sugar water.