Hiccups in pregnant women are related to weak digestive function, fetal growth, digestive system diseases and other factors. Pregnancy belongs to a special period, once the stomach upset, should be timely to the hospital for examination, because a variety of factors can lead to the phenomenon of frequent hiccups in pregnant women: 1, weak digestive function, early pregnancy many women will appear early pregnancy reaction, frequent hiccups is also normal. It is because the uterus gradually increases after pregnancy, will cause some pressure on the abdominal organs, so there will be frequent urination, urinary urgency, hiccups, constipation, etc. 2, late pregnancy with the gradual increase of the fetus, the human diaphragm elevated, cold air, food stimulation will lead to diaphragm spasms, which causes non-stop hiccups. 3, digestive diseases, excluding the above factors, pregnant women frequently hiccups consider digestive diseases caused by. The above factors are excluded. Such as gastritis, gastric ulcer and other stomach diseases, resulting in food can not be quickly digested, long-term accumulation in the stomach to produce more gas, causing hiccups.