<s>[INST] Hi I was run into by a riding scooter in the back of my calf a week ago. There is a hard lump near my calf as large or larger than a quarter. It is also warm to the touch. No cuts in the leg at all. Should I be concerned that I have a blood clot. I m in my 60 s. Thank you. [/INST] Hi ! Good afternoon. I am Chat Doctor answering your query. This has to be a hematoma (collection of blood) in the calf due to the injury. The warmth in the lesion after one week could be a sign of infection, although you did not mention of any pain. I would suggest you to get it clinically assessed by a general surgeon to get proper treatment to avoid any complication of a neglected abscess. Also, I would suggest you to get your blood sugar estimated along with clotting profile, specially if you are on any kind of anti clotting Chat Doctor. 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. Wishing you an early recovery. Chat Doctor. </s>