Tell or Say please, the kid 6 months sits and has learned to stand - costs or stands. Not harmfully...

[Julia]

Tell or Say please, the kid 6 months sits and has learned to stand - costs or stands. Whether it is harmful to ossicles or bonelets and a backbone so many or a lot of;much to sit and stand? He, certainly, creeps, but he likes to rise or sit to play with toys more. Thanks.

[child]

If ITSELF has sat down and has risen, means, the backbone is ready. And still can ask the children's orthopedist.