#asktheexperts “Hi Doctor, I just wanted to ask about my baby’s development. He’s 9 months old now and can roll over, but he hasn’t started sitting by himself yet. Is that okay, or does he need any evaluation or exercises?”

A. Hello good afternoon !! By 9 months babies sit and crawl . If the baby is active and reaches all milestones in time then wait for 2-3 weeks. If you observe the baby is reaching milestones with delay then Check with the Doctor.