Some pregnant women have more severe pregnancy reactions and may still have vomiting in mid-pregnancy. The mucus vomiting in mid-pregnancy of pregnant women is considered to be caused by pregnancy reaction, digestive system diseases or laryngitis. 1. Pregnancy reaction: most pregnant women will have nausea, vomiting and other pregnancy reactions in the early stages of pregnancy, and some pregnant women have a very serious pregnancy reaction, there will be mid-pregnancy vomiting mucus. The mucus vomiting in mid-pregnancy is considered to be the vomiting of digestive juices out of the stomach. 2. Digestive system diseases: If a pregnant woman has stomach problems before pregnancy, frequent vomiting may make the gastric mucous membrane congested, and heartburn and acid reflux may occur, and if you don’t eat when you vomit, you may vomit mucus. 3. pharyngitis: pregnant women in early pregnancy will generally appear resistance to decline, pregnant women resistance to decline may make the virus or bacterial infection of the throat, resulting in sore throat, may lead to inflammatory exudation of the mucous membrane of the throat, which triggers pregnant women to vomit white mucus. If the condition is more serious, there may also be limb pain and weakness, elevated body temperature and other manifestations. If a pregnant woman vomits water after mid-pregnancy becomes vomiting mucus, she should consult a doctor in time and follow the doctor’s instructions for treatment, so as not to affect the normal development of the fetus.