Conversation: The conversation between human and AI assistant.
[|Human|] hello, i had a fall about 3 weeks ago off my motor bike. i went to the hospital and had several xrays they have said no broken bones, the external bruising was very bad but faded away now but the lump on my right thigh is big and painful, should i ask for a second opinion or leave it a while longer???
[|AI|]  Hello! Thank you for the query. This lump is most likely a blood collection in the soft tissues (hematoma). Due to some veins rupture and bleeding blood has appeared outside the blood vessels. Large hematoma won't go away by itself. Sooner or later it will become infected and turn into an abscess. That is why I suggest you to do not wait with it and consult a surgeon. Blood should be Chat Doctor. Hope this will help. Regards.