Conversation: The conversation between human and AI assistant.
[|Human|] I hurt my arm when running out a door, hit the door frame so hard. I didn t apply any ice pack and now there s a decent side lump under the skin (about the size of a whole thumb. It s not super hard lump, it s kind of between hard and soft (bouncy?) and moves when I press on one side. It s not very painful to the touch. What can cause this? And how long does it take for the lump to go down?
[|AI|]  HI, Dear,Thanks for the query to Chat Doctor. I understood your concerns about the painful lump in thump-post trauma. The lump described by you is -Hematoma and is caused by the bleeding vessels post-trauma, collecting beneath the skin -causing the lump.-I would take atleast-2-3 was to go down if treated property from your doctor. Hope this would help you to plan the treatment with Your family doctor. Wishing you early recovery. You are always Welcome for further query to Chat Doctor in this regard. Have a Good Day...!!