Mitral valve severe regurgitation pregnancy should go to the hospital in time to check, assess the patient’s cardiac function, the patient’s cardiac function can not tolerate the continuation of pregnancy, timely termination of pregnancy treatment. Severe mitral regurgitation has an impact on pregnant women, as the blood regurgitation is relatively large, may affect the heart function, resulting in the body circulation, pulmonary circulation stagnation, causing obvious dyspnea, edema in different parts of the body. More serious mitral regurgitation may cause insufficient blood and oxygen supply to the body tissues, indirectly affecting the blood and oxygen supply to the placenta, which may lead to intrauterine growth retardation and increase the chance of fetal miscarriage or fetal arrest. It is recommended to go to the hospital to assess the patient’s cardiac function, cardiac function in grade 1~2 can be pregnant, cardiac function in grade 3~4 can not be pregnant, to go to the hospital in time to terminate the pregnancy treatment. Depending on the number of days of pregnancy, you can choose to terminate the pregnancy by abortion or induced abortion, and it is recommended to go to a regular hospital.