In cases of cardiac discomfort during pregnancy, patients are advised to be given low-flow oxygen for relief during episodes of discomfort and to actively identify what is causing the cardiac discomfort. Patients are advised to have an electrocardiogram, cardiac ultrasound, serum ions, and thyroid function preliminary screening to help clarify whether the patient currently has perinatal cardiomyopathy or myocarditis, or possibly myocardial ischemia due to hypertension, which can induce symptoms of cardiac discomfort. If it is caused by hypertension, we should actively lower the blood pressure, and the preferred antihypertensive drug is methyldopa. The dose of methyldopa and the frequency of daily dosing should be decided according to the different degrees of high blood pressure. Patients are advised to take regular rest and rest, avoid straining and staying up late, and eat a low-salt, low-fat diet to help relieve the symptoms of discomfort.