Today we will talk about the question of concern, is pulmonary hypertension hereditary? Pulmonary hypertension is hereditary. Pulmonary hypertension is diagnosed as familial if more than one member of your family has pulmonary hypertension. In this type of pulmonary hypertension, a faulty (“mutated”) gene causes the development of pulmonary arteries over time; this gene is considered hereditary, meaning that it is passed from generation to generation in family members. However, having familial pulmonary hypertension does not necessarily mean that your child will develop the disease. If one parent carries the disease-causing gene, there is a 50 percent chance that the child will inherit the gene. Even with that disease-causing mutation, they are only 10-20% likely to develop familial pulmonary hypertension; in addition to genetic factors, environmental factors may also play a role. However, it is necessary to pay attention to whether family members have related discomfort and to do clinical examination and genetic screening if necessary. Finally, I would like to highlight a reminder that women with pulmonary hypertension try to avoid pregnancy or follow medical advice.