Hi. My baby is 6 months old baby. But he is not rolling back to tummy and tummy to back. He tries to roll but roll only lower part. Unable to roll upper part. When I put him on tummy he starts crying.

hi harpreet, even my son used to roll only lower part in the initial stage of rolling.. it is how they start.. with practice they will learn to roll onto tummy... keep trying to give tummy time.. sometimes babies don't like to be put on tummy. but he will get used to it... tummy time will help develop neck and back muscles.. first put only for a minute.. then gradually increase time...

Let him take his time.. Don't worry so much.. He will do it when he is comfortable