<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi my friend tripped and fell on my leg about a week ago, i noticed the bruise and it turned into a small bump on my lower leg near my calf. I looked on google and it says it could be a hematoma but its nothing to worry about and should go away in a few weeks. Is this true snd if so can you tell me what a hematoma is. Thank you  <response>: Hello, Thank you for contacting me at Ask a Doctor. I will try to answer your question to the best of my ability. It sounds as though you might be correct. It is possibly a small hematoma and over time this should resolve spontaneously. If you have some stiffness in the area, then I would apply some local heat. Do not worry about it, as I think it will probably resolve in due course. If your symptoms worsen or the swelling starts to increase in size, then I would certainly pay a visit to your primary care physician. I hope this information is useful for you. Please do not hesitate to message us back if you have any further questions. Best wishes, A Chat Doctor. 