What causes patent foramen ovale?

Causes of PFO include developmental abnormalities, genetic factors, disease factors, etc.

1. Developmental abnormalities

If there is an abnormal development of the heart structure during fetal development, the PFO is not completely closed.

2. Genetic factors

If the patient's family has this disease, the patient's risk of PFO is greatly increased.

3. Disease factors

If the patient has congenital heart disease, Eisenmenger syndrome, etc., the abnormal structure and dysfunction of the heart cause the PFO not to completely close.