Hi,thanks for query.You have not mentioned his age.Any way the possible reason could be trauma,some pressure over it ,some infection over the part.Trama is most likely if he is a moving around with or without support on his own.Please talk to your doctor and get him examined.
wishing him good health.
Answered: Fri, 15 Jul 2011
I find this answer helpful
You found this answer helpful
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer.
For a more detailed, immediate answer, try our premium service [Sample answer]