This is a good observation. Both testicles should be in his scrotum by now. It is possible that one of the testes has pulled up out of the scrotum which is known as a 'retractile testis' or one of the testicles did not come down at all which is known as an 'undescended testis'. It is important that both testicles are in place in the scrotum so it would be best to ask your doctor to see your little grandson.
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.