How long does it take hole in heart to close after birth?

After birth, a congenital heart defect known as a patent ductus arteriOSus (PDA) or patent foramen ovale (PFO) may close naturally within the first few days to weeks. In many cases, these openings can close by themselves within the first year of life. However, some may remain open and require medical intervention if they cause significant problems. Regular pediatric check-ups can help monitor the condition and determine if treatment is necessary.