5 days is a bit long for your baby not to have passed a stool, but this seems to be the first time that he has gone so long and he appears to be quite happy and well. It would be a good idea just to use one infant glycerine suppository to help him to pass a stool. Hopefully after that he will be fine again. If not let me know and also tell me what formula he is on.
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.