In early pregnancy, when pregnant women have vomiting reactions, they vomit brown discharge because of severe vomiting, mainly because of the rupture of capillaries in the throat and the rupture of blood vessels in the gastric mucosa, which causes bleeding. This is because severe vomiting can damage the throat and mucous membrane, and the stimulation of stomach acid can also damage the capillaries. As soon as the vomiting symptoms are relieved, the symptoms of brown vomit will improve significantly. If the symptoms persist, it is recommended to check the blood routine and go to the hospital to improve other related examinations. Pregnancy vomiting reaction is particularly serious and can easily cause electrolyte disorder, so it is better to be hospitalized.