Pulmonary hypertension can cause chest pain, but if pulmonary hypertension causes chest pain, it is evidence that the degree of pulmonary hypertension is relatively severe. Usually in the early stages of pulmonary hypertension, there are no obvious clinical symptoms or typical signs, so it is difficult to recognize pulmonary hypertension in the early stages. If there is obvious pulmonary hypertension, the patient will have exertional dyspnea and peripheral weakness, especially after engaging in sports and strenuous activities, typical dyspnea will be obvious, accompanied by chest tightness and shortness of breath, etc. Severe pulmonary hypertension will have obvious exertional chest pain, and the patient will also have syncope and certain symptoms of congestion, in addition to ascites, pleural effusion, and abdominal distension, etc.