Cleft palate results from which developmental issue?

• A. Infection during pregnancy
• B. Premature closing of the palate
• C. Trauma during birth
• D. Failure of the palate to close during early development

Answer: (D)

Cleft palate happens because the palate fails to fuse during early development. In the embryo, the palatal shelves grow from the sides of the mouth and move toward the midline to join and form a continuous roof of the mouth. If that fusion doesn’t occur properly, a gap remains, resulting in a cleft palate. This developmental issue occurs in early gestation, typically around weeks 7 to 12. It isn’t caused by infection during pregnancy or by trauma at birth, and it isn’t due to premature closing—the problem is the failure of fusion. Management usually involves surgical repair (palatoplasty) and ongoing care such as speech and hearing follow-up.