Primary pulmonary hypertension is also called idiopathic pulmonary hypertension; the cause of the disease is not clear, so there is no way to completely cure it, but only through drugs to control the condition and improve the symptoms. Idiopathic pulmonary hypertension is characterized by a persistent increase in pulmonary vascular resistance, the cause of which is unknown, and the left atrium and pulmonary vein pressures are roughly normal; patients may experience symptoms such as chest tightness, chest pain, dry cough, shortness of breath, dizziness and other symptoms, and in severe cases, this may lead to cardiac arrhythmia or sudden cardiogenic death; untreated, the prognosis is extremely poor. For idiopathic pulmonary hypertension, drug treatment is the mainstay, and surgery can be considered if the condition requires it. 1. Drug treatment: calcium channel blockers, endothelin receptor antagonists, phosphodiesterase type 5 inhibitors and other drugs can be used under the guidance of doctors. (1) Calcium channel blockers: such as nifedipine, amlodipine, etc., can adequately relieve pulmonary artery spasm, dilate pulmonary blood vessels and relieve symptoms. (2) Endothelin receptor antagonists: such as bosentan and albuterol. They can block the binding of endothelin 1 and its receptor and inhibit pulmonary vasoconstriction. (3) Phosphodiesterase type 5 inhibitors: e.g., sildenafil, tadalafil, etc.; they can inhibit the degradation of cyclic guanosine monophosphate, which can dilate the pulmonary vascularization. 2. Surgical treatment: e.g. balloon dilatation septostomy, heart or combined heart-lung transplantation. Surgical treatment can reduce the burden on the heart or achieve a radical cure. Patients with primary pulmonary hypertension should go to the cardiovascular department of the hospital in time and take reasonable treatment under the guidance of the doctor, do not blindly use drugs on their own to improve the quality of survival.