Conversation: The conversation between human and AI assistant.
[|Human|] i had a big ball on one of my legs almost 6 months ago, it was a ball red and very hot that became a bruce, it took my ankle and didnt went away untill like 5 weeks... 3 months after it went away i got the same thing over my oher legbut it was like 2 under my knee same thing a ball red hot took over all my leg froe the knee and down, now it looks like another one its coming the doctors dont know what it is... what is it its really painfull
[|AI|]  Hello! Welcome to Ask a Doctor service! Regarding your concern, I would explain that your symptoms could be related to vasculitis or local inflammation. For this reason, it is important performing some tests in order to investigate for the possible causes: - a bump ultrasound in order to examine this tissue- inflammation tests (complete blood count, PCR, ESR)- biopsy may be needed. Hope to have been helpful! Kind regards,