Patients with mild tricuspid regurgitation may be observed for a while if it does not affect the patient’s hemodynamics. Mild tricuspid regurgitation is caused by malfunction of the normal valve due to right ventricular dilatation, infectious factors, and abnormal development of the valve. In general, it does not affect blood flow, so it is unlikely to lead to changes in blood pressure or cerebral underperfusion, so there is no need for special treatment in patients with mild tricuspid regurgitation. In particular, elderly patients and patients with congenital heart disease should be highly aware of the possibility of further development of tricuspid valve lesions, which may lead to further aggravation of tricuspid regurgitation. For a patient with mild tricuspid regurgitation, the first thing to do in this case is to get adequate rest, pay attention to the changes in blood pressure and temperature, and regularly review cardiac ultrasound and electrocardiogram. Observe whether regurgitation continues to develop.