What is the cause and treatment for small bump on the knee?
Patient: Hi, I have a small bump on my knee and I'm not sure if it is harmful... It doesn't hurt and is pretty small, but I don't know what it is, why it's there, or if it needs to be removed. It kind of feels like there is a small, firm bubble underneath my skin or like a bump that is about the size of a bead... What could it be? Doctor: Hi,  It can be a small wart-like lesion and does not indicate any significant disease condition. It will be better if you attach a picture along with the query.  Hope I have answered your query. Let me know if I can assist you further.