my boy is now 15 month old but his weight is only 9 kg and recently facing problem to not eat. try lots of way but I m failed to do. please help me out

A. Hello good evening !! If baby is active,acheiving milestones then nothing to worry about weight,baby weight is fine. Check if baby is on teething - while teething they have hard,swollen gums,cranky and rejects feed due to gum pain. Soothe baby gums with teethers,soothers for easing gum pain,fluids,semi solids,finger foods are suggested to feed .