For babies over 2 months

• Baby’s head lags when you pick him up while he is lying down.

• He feels stiff or floppy

• When you cradle him in your arms, he seems to overextend his back and neck, as if he is pushing away from you.

• When you pick him up, his legs get stiff and cross each other.

For babies over 6 months

• Baby does not roll over

• He reaches out with only one hand while keeping the other fisted

For babies over 10 months

• Baby does not crawl on all fours

• Crawls in a lopsided manner, with all his weight on one side of his body while he drags the opposite side.

• Does not sit without support