Conversation: The conversation between human and AI assistant.
[|Human|] hi there my daughter knocked her shin on a climbing frame around 4 weeks ago there was a sraping of the skin and a bruise... which disappeared after a few weeks however there is still a golf sized lump under the skin which i am worried about what could this be??? She says it is not painful and is not complaining of any discomfort.
[|AI|]  Hello! Thank you for the query. Such lump is most likely a hematoma. Due to recent injury some small veins have gotten ruptured, so the blood has appeared under the skin. Such hematoma if it is large enough, can not be absorbed by itself. Moreover, it may get infected and turn into painful abscess. That is why I suggest your daughter to consult a doctor and have it Chat Doctor.  In case of any doubts, soft tissues' ultrasound should be done. Hope this will help. Regards.