During menstruation, when the endometrium is shedding will release prostaglandins, prostaglandins can not only make the uterine smooth muscle contraction, but also cause the contraction of gastrointestinal smooth muscle, when the gastrointestinal smooth muscle contraction, will accelerate the gastrointestinal peristalsis, so there will be the phenomenon of farting, just some people are more sensitive, some people are not sensitive, in daily life, this is a normal phenomenon. It is recommended to eat less gas-producing food during menstruation, such as some beans or milk, sweet potatoes can produce gas, which can aggravate the phenomenon of farting during menstruation, so try not to eat these foods. In addition, during menstruation, it is recommended to do a good job of keeping warm, whether in the diet or clothing, pay attention to give warmth.