my boy baby is 4 month and 18days old..he roll over when he starts 4 th month .only two times ..then he not roll over till now...is there any problem. when teething and sitting starts...?

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 the weightd of the child is more and dthat 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 dcarry out regular massage and proper diet and the child will be fine in next few months