Pulmonary hypertension is caused by various underlying causes. And the treatment depends on treating the underlying cause and severity of the symptoms. There are many treatment options ranging from diuretics, oxygen therapy, anticoagulants, vasodilators to advanced therapies like prostacyclin agonists, endothelin receptor antagonists, sGC stimulators and PDE5 inhibitors. Patients who do not respond well to these treatments are considered for lung transplantation.

Treatment for pulmonary hypertension depends on the underlying cause and severity. Common options include:

- Vasodilators (e.g., prostacyclins, endothelin receptor antagonists, PDE-5 inhibitors) to relax blood vessels
- Diuretics to reduce fluid buildup
- Anticoagulants if there's a risk of blood clots
- Oxygen therapy for low oxygen levels
- Lifestyle changes: Low-sodium diet, avoiding high altitudes, and regular light exercise

Primary ,& sundry secondary ,from lung disease or sleep apnea .