A large increase in appetite before menstruation is mainly due to hormonal changes.
Before menstruation, the levels of estrogen and progesterone secreted by the ovaries will rise rapidly, reaching a peak throughout the menstrual cycle, and then will fall rapidly, causing the endometrium to shed its lining, resulting in menstruation.
Due to the fluctuation of sex hormones, the appetite may be affected, and some patients may show a great increase in appetite, which may also be accompanied by changes in dietary tastes. Usually, it will recover on its own when the hormone level returns to normal after menstruation.
It should be noted that before menstruation, women’s gastrointestinal function is relatively fragile, and diarrhea, abdominal pain and other phenomena may occur. At this time, you should pay attention to a light and nutritious diet, with a reasonable mix of coarse and fine grains, meat and vegetables. If the symptoms can not be relieved by themselves, it is recommended to go to the hospital in a timely manner, and follow the doctor’s instructions for treatment.