Pregnant women farting a lot may be caused by pregnancy, and may also be the cause of improper diet, need to be judged according to the specific circumstances. 1. pregnancy: if the pre-pregnancy farting is due to the body’s hormone level gradually increased, resulting in slowing down the bowel movement caused by the normal excretory function will be affected, so that the pregnant woman appeared flatulence as well as constipation phenomenon. Farting in the second trimester of pregnancy may also be caused by the slow peristalsis of the intestines after the fetus has grown too big and pressed into the intestines. 2. Dietary factors: In addition to pregnancy factors, dietary factors are also an important factor in causing farting during pregnancy. During pregnancy, a woman’s preference for food may change, and if a woman likes to eat turnips or sweet potatoes, which are easy to produce gas, and eats more of them, she will form a phenomenon of farting during pregnancy. During pregnancy, it is necessary to undergo regular obstetric examination, which can observe the specific situation of the fetus in the uterus and check whether the development of the fetus is healthy or not, so as not to affect the health of the fetus.