Hello doctors, My daughter is 5 months old. 3 days after her birth doctor has done echocardiography and it was showing PFO 2 mm with L - > R Shunt. They have suggested that it will be closed with growth of the baby and I can consult any paediatric cardiologist after 6 months. I have consulted a doctor yesterday and he asked to do echo again. This time in echo it is showing that 3 mm ASD with L -> R shunt. Rest everything showing normal. And again doctor suggested that there is nothing to worry since the size is too small and you can just ignore for now and consult a doctor again after 1 year. I wanted to know through Lybrate that what is PFO and Asd. How come pfo is changed to ASD after 6 months. Is it the same or any difference. Any medication to fill the hole? How long it takes to fill the hole naturally. Is there any complication because of asd on my baby's health. Any precaution from my side? Kindly advice. Regards,