Childhood Diseases

Posted by: KC | 2011/03/11



Hi Dr
I would just like to find out when the weight of a baby is cause for concern. My baby boy at 3 and a half months weighed 5.3kgs and 63cm. The clinic sister is concerned as his weight growth chart is beginning to level off. He really looks like a healthy baby and does not look thin. He had a bad few weeks with an ear, viral and upper resp. infection, one after the other but seems to have recovered well although he still has swollen glands behind his head. He currently drinks approximately 550 to 650 mls of formula in 24 hours.
He is also slightly behind on a few milestones and does not have very good upper body and head control but it is improving daily.
In your opinion, is his weight too low and if so, what can be done?

Expert's Reply



The average weight for a baby boy of 3 and a half months is 6.5kg.Your baby's weight is definitely well below this expected weight and his weight is in the lowest 9% for baby boys of his age. He seems to be taking enough formula for his present weight, but below the necessary amount for his expected weight. It is possible that his recent infections have set him backa bit with regards to his weight gain as well as his milestones.Give him another 4 weeks or so to see if his weight gain improves, if it does not it would be best to ask your paediatrician to see your baby just to make sure that all is well.

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