Is it normal for a 10-day newborn to have a patent foramen ovale?

A patent foramen ovale is usually normal in newborns at 10 days old.

The foramen ovale is an open passage connecting the two chambers of the heart while the fetus is in utero and should gradually close after birth. However, a patent foramen ovale is common early in life and sometimes takes a while to close completely. Normally, the foramen ovale will fuse on its own around 2 months after birth. However, some newborns may take longer, because the baby's heart and blood circulation system need to adapt to the external environment and mature, so 10-day newborn patent foramen ovale is generally normal.