Conversation: The conversation between human and AI assistant.
[|Human|] Hi, I am a male and 29 years old.  About 2.5 weeks ago I took a fall on a dirt bike and it resulted in a bruise on upper portion of my pelvis.  There is also a somewhat mobile hard bump about the size of a pea in the bruise.  Is this normal? and Will the bump go away?
[|AI|]  Thanks for your question on Chat Doctor. In my opinion, you are having hematoma due to fall. Fall causes soft tissue injury like muscle, skin or subcutaneous tissues. And healing in these tissues occur by hematoma formation. Hematoma is swelling consisting inflammatory cells and other tissue needed for healing. So possibility of hematoma is more in your case. It will resolve slowly over time. So better to get done ultrasound examination of local part for the diagnosis of hematoma. And if it is hematoma then it will slowly resolve by itself, hence no treatment is required.