my baby is 11 months old and his weight is 8.6 from 7 months but he is very active..so do I need to worry as his teeth has not come yet...tell me the reason for not gaining weight or for teeth

A. The weight will increase over the period do not worry about it and the teacher should come by the time of 17 months on the higher side and if it doesn’t happen by that then you can consult your doctor for further assistance