Common signs of mitral stenosis in rheumatic heart disease include heart murmur, mitral valve facies, and signs of right heart insufficiency. 1. Heart murmur: in mitral stenosis, the heart can hear the open heart sound in the apical part of the heart, and secondly, the rumbling murmur can be heard in the middle and late diastolic stage. When the high pressure of the left atrium affects the pulmonary artery, a systolic jet murmur can be heard in the pulmonary artery auscultation area. 2. Mitral valve facies: Patients with moderate or severe mitral stenosis may have mitral valve facies. In mitral stenosis, the blood from the left atrium is not discharged well, which leads to blood accumulation in the lungs, causing slow blood circulation and reduced blood oxygen level, resulting in a dark face, accompanied by redness or even purplish skin on the cheeks and lips. 3. Signs of right heart insufficiency: mitral stenosis leads to stasis in the pulmonary circulation and an increase in the afterload of the right ventricle. Right heart insufficiency occurs when the right heart function is unable to compensate for it, resulting in signs such as jugular vein variance, positive hepatic and jugular venous reflux signs and lower limb edema. Rheumatic heart disease mitral stenosis is recommended to consult a doctor in a timely manner, under the guidance of the doctor to determine the treatment plan, to avoid blindly use their own medication.