Whether pulmonary valve insufficiency is serious or not mainly depends on the degree of severity. Mild valve closure insufficiency is not a particularly serious condition, and will not have too much impact on the body; severe valve closure insufficiency may lead to right heart hypertrophy and right heart failure, which is a serious condition. 1. Mild pulmonary valve closure insufficiency is only accompanied by a small amount of blood regurgitation, and does not significantly affect the cardiopulmonary function, it is not serious, and can be periodically reviewed. 2. Severe valvular insufficiency will lead to obvious blood regurgitation, and if it is not controlled for a long time, the right ventricle will be overloaded, which will lead to hypertrophy of the right heart, and if the condition develops seriously, it can lead to right heart failure, which is a more serious condition. Pulmonary valvular insufficiency accompanied by abnormal respiratory conditions, need to consult a doctor for observation, after diagnosis of the condition under the guidance of the clinician to carry out standardized treatment, to avoid causing serious complications.