More farts, that is, more exhaust, usually more exhaust in pregnancy is related to hormonal factors, exercise factors and uterine enlargement and other factors. 1. Hormonal factors: Pregnant women are affected by the special state of pregnancy, the body secretes a large amount of estrogen and progesterone, which may increase gastric acid and delay gastric emptying, leading to a certain impact on food digestion, which may lead to intestinal flatulence, which in turn may lead to excessive exhaustion in pregnancy. 2. Exercise factor: pregnant women during pregnancy exercise is relatively less, there may be poor digestion of food, this time the food in the gastrointestinal tract retention is too long, may also occur in pregnancy exhaust phenomenon. 3. Uterine enlargement factors: with the increasing size of the uterus, the uterine fundus and diaphragm in the continuous growth, uplift, so that the digestive system changes, the uterus will press the intestinal tract will slow down the intestinal peristalsis, and even constipation phenomenon, long-term constipation can be made in the intestinal retention of stools for too long, resulting in an increase in the production of gas, and then appeared in the case of excessive pregnancy exhaust. Pregnant women need to consume easy to digest food, at the same time, it is recommended to moderate exercise, every day adhere to aerobic exercise, such as slow walking, etc., if not wait for relief, it is recommended to consult a doctor in a timely manner.