Pulmonary artery hypertension (PAH) is a condition where the pressure in the pulmonary arteries, becomes abnormally high. This can occur due to various reasons, including heart conditions, lung diseases, and genetic disorders. As the pressure in the pulmonary arteries increases, the right side of the heart has to work harder to pump blood into the lungs, leading to right ventricular failure and potentially fatal complications. symptoms of PAH include shortness of breath, fatigue, chest pain, and swelling in the legs and feet. If left untreated, PAH can lead to right ventricular failure, cor pulmonale, and ultimately death. Treatment options for PAH include medications that dilate the blood vessels, reduce blood pressure, and improve cardiac function. Lung transplantation may also be considered in severe cases. Early diagnosis and treatment are crucial to manage PAH effectively and improve quality of life