<s>[INST] I fell on my knee about a month and a half ago and it was really deeply bruised. Its still just as bruised as it was when I hurt it and recently Ive notice a lump on my knee cap towards the side a little more and it moves around, it also hurts a bit. What could it be? [/INST] Hi, Dear,Thanks for the query to Chat Doctor. I studied your problem in depth and I understood your concerns. Cause and plan of Treatment-In my opinion on the given data, you seem to have Housemaids Bursitis-or pre-patellar bursitis. Treatment is by-Anti-inflammaotary gel and tablets locally/ Aspiration witChatDoctorpression bandage / if recurred -tetracycline instillation to induce sterile fibrosis and permanent reduction of the bursitis lump./ if still remains, would need Surgical Excision by ER Ortho-Surgeon. So don't build up wrong concepts and self-medicate your self which would increase risks and costs to you.Instead, just ask a query to Chat Doctor and be comfortable to resolve your health issues. Welcome for any more query in this regard to Chat Doctor. Write good reviews and Click thanks if you feel satisfied with my advice. Have a Good Day. Chat Doctor. N. </s>