The symptoms of vomiting in late pregnancy may be caused by physiological factors or pathological factors. Physiological factors are mainly related to the compression of the stomach by the fundus of the uterus, which affects the emptying function of the stomach, and also related to improper diet. pathological factors mainly include: 1. pregnant women with improper diet during pregnancy, or infected with pathogenic microorganisms, causing acute gastroenteritis, will show symptoms of vomiting, often accompanied by diarrhea, abdominal pain, etc. 2. in late pregnancy, combined with cholestasis of pregnancy syndrome, pregnant women will also 3. If you have urinary stones during pregnancy, it will also cause reflex vomiting symptoms, accompanied by radiating pain in the lower abdomen and perineum.