<s>[INST] Hello, I have small lump in the middle of my leg between my kneecap and my shin right near the bone. Its the color of my skin, and is painless. Its only visable when I put pressure on that leg and its soft (visable due to a slight shift to a whiter hue). When I push it in, nothing happens and there isnt any pain. It seems to completely disappear as soon as pressure is taken off the leg - when I sit down for instance. What the heck is it? [/INST] Hi ! Good evening. I am Chat Doctor answering your query. From your history, it seems that you have got a bursa (fluid filled cyst) over the area which might occur especially those who put chronic pressure on their knees. For a diagnosis, if I were your doctor, I would advise you to get a FNAC (fine needle aspiration cytology) to have a cytological diagnosis and further management depending on the report. 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>