hello doctor my boy is 7mnoths old...he didnt crawl...only roll over...y he didnt crawl

A. sometimes rolling over can come after 4-5 months so no need to worry for that and it is not necessary that it should come early. many times thge weight of the child is more and that also delays the rolling. if if the growth and weight of the child is within normal limits then no need to worry about it. just carry out regular massfage and proper diet and the child will be fine in next few months