My boy is 10 months old his weight is 8.5 and he is not putting on weight since 4 months what might be d reason

A. dear parent, weight of 8.5 kg is a normal weight for your 10 months old child. if your child is active, playful, achieving all growth milestones, passing urine more than 6 to 8 times in 24 hours then it indicates good health.