<s>[INST] On my middle right toe, the middle pad of my toe is completely swollen. If you flex my to forward, it seems as if a large ball all around it pops out, there is a bluish line within it. It is not painful. I ve tried to push a sterilized needle in to see if it was filled with fluid, but it didn t work. [/INST] Hi! Good morning. I am Chat Doctor answering your query. Even though it needs a clinical assessment to know what it is, if I were your doctor, I after a clinical assessment would advise you for a routine blood test like complete blood count, ESR, blood star and a serum uric acid test and treat it if positive. In case of no positivity, I would advise you for a FNAC (FNE needle aspiration cytology) for a cytological diagnosis of the lump. Further management would depend on the report of investigations. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing Chat Doctor to clear doubts on your health problems. I wish you an early recovery. Chat Doctor. </s>