The yellow water vomiting in the morning during pregnancy is generally an early pregnancy reaction caused by changes in hormone levels in the body after pregnancy, but it may also be related to cholecystitis.1. Early pregnancy reaction: during pregnancy, due to the increase in the level of estrogen and progesterone in the body, there will be nausea, vomiting and other early pregnancy reactions. In the first 3 months of pregnancy, the yellow water vomited is usually digestive fluid containing bile, and most pregnant women can relieve themselves by vomiting yellow water before 14 weeks of pregnancy. Pay attention to adjusting the diet structure, choosing light and easily digestible food, and at the same time, relaxing and maintaining sufficient sleep and good mental state; 2. Cholecystitis: If there is a combination of cholecystitis during pregnancy, it can manifest as nausea, vomiting, pain, fever, right shoulder and back Radiation pain and other different symptoms, as the disease affects the normal discharge of bile, causing bile stasis and yellow water when vomiting. Treatment can be done by applying drugs for anti-inflammatory treatment under the guidance of the doctor, controlling the diet and avoiding oily, spicy and irritating foods. In case of gallbladder perforation or diffuse peritonitis, surgical treatment should be performed in time.