During pregnancy is actually the most obvious time for women’s physiological changes, during pregnancy, the body’s estrogen and progesterone hormones occur more obvious changes in the gastrointestinal tract will produce changes accordingly, for example, some people will be manifested in the early stages of pregnancy for more obvious vomiting and lead to a lack of appetite, no taste in the mouth, do not want to eat. Serious cases will also be due to repeated pregnancy vomiting lead to obvious acid reflux, heartburn, weight loss, serious pregnant women need intravenous rehydration therapy. With the prolongation of pregnancy belly is getting bigger and bigger, this time the gastrointestinal tract will be squeezed, sometimes the blood supply of the digestive tract will also be affected because of the enlargement of the fetus, and the gastrointestinal tract will be aggravated by the stagnation of blood. All these affect the appetite to a certain extent, will feel no taste, do not want to eat, most of the normal physiological changes, with the delivery of the fetus symptoms will be relieved to disappear.