Hormonal changes occur in a woman’s body around the time of pregnancy, and an enlarged uterus presses on the stomach and intestines causing uncomfortable and old hiccups. After pregnancy many pregnant women experience nausea, burping, vomiting, decreased appetite and a particularly uncomfortable stomach. This is due to hormonal changes in a woman’s body, with estrogen affecting pepsin and causing it to slowly decrease. As the embryo develops the uterus slowly increases in size and presses on the stomach and intestines causing slowed peristalsis, the food eaten is not easily digested and piles up in the stomach and intestines producing a lot of gas, so there are symptoms of acid reflux, vomiting and old burping. Patients can do more clockwise massage of the abdomen, take appropriate walks outdoors to relieve, adopt a small number of meals and do not eat too hard or cold food. The uncomfortable stomach and old hiccups after pregnancy are related to the change of female hormones and the enlarged uterus pressing on the stomach and intestines, and in serious cases, timely medical consultation is needed.