<s>[INST] Hi, my father has pain in sternum after 1.5 year bypass surgery, then i have visted ortho surgen and he told me thAT there was problem to heal sternum and now he told me to go for surgery, but i am hesotate to go for surgery and confuse to go which doctor either cardiac or ortho sirgen, kindly guide me.... [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Wound gapping and delayed healing can be seen after bypass surgery. And this can cause pain especially in movements of chest. In my opinion, you should consult cardiac surgeon for this. He needs revision surgery with artificial bone graft. By this healing can be achieved, and hence symptomatic relief is more likely. Calcium and vitamin D 3 supplements are also helpful in healing. So consult cardiac surgeon and discuss all these. Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks. </s>