Which statement about the Moro reflex is correct?

• A. It typically disappears by 3 months
• B. It never disappears
• C. It typically disappears by 4-6 months
• D. It appears only after birth

Answer: (C)

The Moro reflex is a primitive, protective response that signals an immature nervous system. It is triggered by a sudden stimulus or perceived loss of support. When elicited, the infant open-arms, extends the arms, and then hugs them back in, often with crying. This reflex is present at birth and gradually becomes integrated as the nervous system matures, typically fading around four to six months of age. If it persists beyond six months or is absent, that can indicate a neurodevelopmental issue that should be evaluated.

So, saying that it typically disappears by 4-6 months aligns with the normal development timeline. The other statements don’t fit: it does disappear eventually, so it isn’t never gone; it’s present at birth, not appearing only after birth; and it doesn’t disappear by 3 months, which is earlier than the expected window.