Hey, I noticed this hard lump on my right rib cage. It doesn't hurt when I touch it, and it stays in place, feeling just like bone. But sometimes it hurts a little on its own, and I've got this pain around my right shoulder blade too. Any idea what this could 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.