Moro reflex: The Moro reflex is when your baby startles in reaction to the sensation of falling, such as when their head shifts suddenly. Learn causes, importance, and what to expect.

Medically reviewed by Jonathan B. Jassey, DO The Moro reflex is a protective "primitive reflex" seen in healthy babies up to 6 months old. A baby's arms quickly extend away from the body with ...

Premature infants can have a weaker Moro reflex because of their immature nervous system, but this generally gets better over ...

Moro reflex. The Moro reflex , also called the startle reflex, is the baby’s reaction to being startled. The cause is often a loud sound, a sudden movement, or even their own cry.

Your baby’s startle reflexes will begin to disappear as they grow. By the time your baby is 3 to 6 months old, they probably won’t demonstrate the Moro reflex any longer.

Newborns do a lot of strange movements and behaviors that quite often scare parents. What are normal newborn reflexes, and when should parents worry? The first one most parents know and call the ...