<s>[INST] Hello! I am Ardit, from Albania. I have a deformation on my chest, it looks like the left side is outer than the right side near the "middle on the bottom of the chest" (sorry if i'm not clear). I don't know if i have had it since birth or i've hurt it accidentally. I would be very pleased to know if it is necessary to  fix it and am I too late to do that? (now i'm 21)  Is that going to cause me any problem when i get older?? what do you advice me to do?than you! [/INST] Hello and welcome in HCM. I can try to explain something to you. First to be sure what kind of deformation of the thoracic cage is it might be better to see a pulmonologist to do  a computed tomography of the chest to evaluate better the ribs, sternum and the lungs.After the result to do a Spirometry test for checking the lungs function. If the results are normal and if you don't feel difficulty in breathing maybe you can consult an orthopaedic specialist and he will advice if that deformation need fixing or not .Instead if you feel good you can do physical activity. I wish you a good health Dr. Jolanda Pulmonologist </s>