The average weight for a baby boy of 15 months is 10.3kg. Your son's weight is obviously below this average weight and his weight lies on the 10th percentile line of the infant weight chart. This means that his weight is in the lowest 10% for babies of his age.It is odd that he seems to have lost weight especially as he appears to be quite well. Try the sister's advice. She has made good recommnedations. Give him 2 months and then weigh him again and see if he has shown an improvemnt.If not, ask the sister for further advice.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.