Childhood Diseases

Posted by: Shelby | 2010/01/29


Sunken Fontanelle

Hi Doctor,

My 6 month old has a slightly sunken fontanelle. He has been diagnosed with acute tonsilltis and has been on anti-biotics since Tuesday and it finishes tomorrow. I have been giving him Re-hydrate sachets and am trying to get him to drink more milk formula. He is eating 3-4 small meals a day, including yoghurt. I also give him Probiflora drops daily.

Is there something else I can do, or just give it time? Do you think the anti-biotics can cause de-hydration?

Thank you for your time.

Expert's Reply



Your baby son's slighly sunken fontanelle may be normal for him. The usual cause of a definitely sunken fontanelle is diarrhoea with dehydration. Of course dehydration can result from fever or a baby not drinking enough as well.Antibiotics do not cause dehydration unless diarrhoea develops while on the antibiotic.The Probiflora drops are essential now. He is a bit young to be eating yoghurt. There does not appear to be any obvious cause for your son's slightly sunken fontanelle so this is most likely his normal appearance.

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