Pulmonary hypertension usually has no obvious symptoms in the early stage, and shortness of breath, hemoptysis, palpitations, fatigue, chest pain, cyanosis and other symptoms may appear as the condition worsens. The clinical symptoms of pulmonary hypertension often lack specificity and are usually not obvious in the early stages. As the disease progresses, pulmonary hypertension can lead to right ventricular hypertrophy and pulmonary heart disease, which can lead to shortness of breath, hemoptysis, palpitations, fatigue, chest pain, cyanosis and other discomforts. Patients with pulmonary arterial hypertension should strictly follow the doctor’s instructions to actively treat the primary disease and take medication on time. They should eat a light diet, maintain emotional stability and a regular routine, and avoid exposure to cold. Patients with pulmonary arterial hypertension should consult a doctor immediately if they feel unwell, and should not avoid medical treatment, so as not to jeopardize their condition.