Hi, My 13 yr old sons chest bone is quite a bit larger on the left side. It is hard to touch, and he says there is no pain but is adamant that he does not want to see a GP. He is usually healthy and recovers quickly from colds etc. He is often very pale even though he takes multi vitamins with iron. It really is quite worrying, and I will drag him to see a doctor next week, but in the mean time can you shed any light on this? Thank you from a very concerned Mum!
Hello, I think this enlargement is osteocyte Chat Doctor.  Happens in teenage while growing. It is not dangerous as it does not compress the heart and lungs but sticks out. It is more of a cosmetic issue. Your doctor may send you to orthotic center to use a course (custom-made body brace) for a while until gets straight. Hope I have answered your query. Let me know if I can assist you further.