By three months your baby can control their head when they're being supported to sit. By six months, they will have neck muscles that are strong enough to hold their head up and turn it from side to side .

When do babies grow a neck?

Allowing your baby to exercise and move in this position helps develop head and neck muscles. Around 4 months of age, babies gain control and balance in their head, neck, and trunk.

Why is my baby's neck short?

Infant torticollis happens when the muscles that connect the breastbone and collarbone to the skull (sternocleidomastoid muscle) are shortened. Because your baby's neck muscle is shortened on one side of the neck, it pulls their head into a tilt or rotation, and often both.