Cardiac insufficiency in pregnancy is manifested by pulmonary abandonment, acute pulmonary edema, and right heart failure. Heart disease during pregnancy can be divided into two main categories. The first category is pre-existing heart disease, mostly rheumatic and congenital heart disease, while hypertensive heart disease, mitral valve prolapse and hypertrophic heart disease are rare. The second category is heart disease induced by pregnancy, such as hypertensive heart disease and perinatal heart disease. So what are the diagnostic methods for the appearance of pulmonary abandonment of blood? Here is a brief introduction. Diagnosis of pulmonary abandonment of blood If organic heart disease is known before pregnancy, of course, there is no diagnostic problem, but some patients can have no conscious symptoms and do not seek medical attention. A series of functional changes in the cardiovascular system caused by pregnancy can lead to symptoms such as palpitations, shortness of breath, edema, etc. They can also be accompanied by signs such as mild enlargement of the heart, heart murmurs, as well as x-ray and electrocardiogram changes, thus increasing the difficulty of cardiac diagnosis. However, the presence of organic heart disease should be considered if the following abnormalities are found 1, Grade III or higher, rough systolic murmur. 2.Diastolic murmur. 3.Severe arrhythmias, such as atrial fibrillation or flutter, atrioventricular block, etc. 4.X-ray radiographs show significantly enlarged heart shadow, especially individual atria or ventricles are significantly enlarged. 5.Echocardiography shows heart valve, atrial and ventricular lesions. Patients are recommended to actively go to professional and regular hospitals for systematic examination and diagnosis to avoid misdiagnosis and delay of the disease.