Conversation: The conversation between human and AI assistant.
[|Human|] I fell on my knee on the concrete 1 month ago. The area was bruised and scabbed. It has since healed, but there is now a large hard lump on my knee cap. It is about the size of a gumball. Does no feel fluid filled. It is in fact very hard like bone, but is only mildly tender when touched. What is it? Will it go away?
[|AI|]  Hi, Greetings from Chat Doctor. Since you fell on a concrete slab you must have suffered a hematoma in the knee. Once hematoma is organized it will feel like a hard swelling instead of fluid. You need to give cold compresses to prevent it getting bigger. You also need to take paracetamol and diclofenac tablets to get relief. It will take a long time to resolve spontaneously. You better go to an orthopedic and Chat Doctor. Hope you will be fine