I have a bony lump on my right rib cage. It doesnt hurt when I touch it, and its hard like bone and doesnt move. Occasionally, I feel a little pain in that area, even without touching it, and sometimes I also feel pain in my right shoulder blade. What could this be?

The bony lump on your right rib cage, which is hard, non-mobile, and occasionally painful, along with referred pain to the right shoulder blade, may indicate a benign bone growth or lesion, such as an osteochondroma, costal exostosis, or a bone spur, but a thorough medical evaluation, including imaging tests like X-rays or a CT scan, is necessary to determine the exact cause and appropriate course of action.