<human>: ok so I have this lump or bump on the inside of my elbow it started out looking just like a pimple so I popped it, and it was fine for a while but now it has scabbed over a little bit and its about a nickel sized hard lump under my skin that s tender to touch but rock solid I think it might be starting on my other elbow too, what could this be? How can I solve it?
<bot>: Hi, thanks for writing to Chat Doctor. Well, as per your description, if I were your treating physician, I would have come up with only two possibilities like:1. A sebaceous cyst that has been traumatizes and infected! 2. some cyst-like condition like bursa, ganglion or inflammatory / irritation effusion in the joint!  I also suggest you to go for a microbiological/cytological test of the lump for confirmation and to relieve your concerns! Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.