The term “vacation” usually stands for menstruation. Weight gain during menstruation may be caused by overeating and changes in hormone levels, which are generally normal and not a cause for concern. 1. Overeating: During menstruation, some women may have a big appetite, and eating too much food will easily lead to weight gain. After menstruation, you can lose weight by controlling your diet and exercising moderately. 2. Changes in hormone levels: Before a woman’s period, the level of estrogen in her body fluctuates, and some women’s bodies may experience slight edema, which in turn leads to weight gain. After menstruation, the estrogen in women’s bodies gradually returns to normal levels, the edema phenomenon will be reduced, and the weight will drop accordingly. During menstruation, women should pay attention to proper rest, keep the pubic area clean, change and wash personal clothing, eat a healthy diet, choose to walk, yoga and other low-intensity exercise, and consult a doctor if symptoms of physical discomfort occur.