Heart disease mitral stenosis with frequent swollen feet is serious. Mitral stenosis is a common heart valve disease that is overwhelmingly a sequela of rheumatic fever. Patients may have dyspnea, hemoptysis, and other symptoms. It can be complicated by serious complications such as arrhythmia, congestive heart failure, acute pulmonary edema, and embolism. Mitral stenosis as the disease progresses leads to pulmonary hypertension, pulmonary stasis, pulmonary stasis will lead to left heart failure, the later will appear the whole heart failure, severe cases of ascites, lower limb edema and other cardiac decompensation performance. Therefore, heart disease mitral stenosis often swollen feet indicate that the patient’s condition has been very serious. Heart disease mitral stenosis patients, we must consult a doctor in a timely manner, follow the doctor’s instructions for examination and treatment, to avoid the development of the condition to a serious stage.