Conversation: The conversation between human and AI assistant.
[|Human|] Yesterday while at work I noticed out of the blue a small swollen knot the size of a marble on my left arm, in the middle between my wrist and elbow...on the same side as the back of my hand....it did not hurt..but I could roll it around and it was very scary to both myself and my coworkers...they suggested that I go to the emergency room, as one employee believed it was a blood clot in my vein...about 20 minutes later...it went down completely...today the skin there looks like a super super light bruise....should I seek a doctor for examination....not sure if I should be concerned....I am 39 years old and female
[|AI|]  Hi! Welcome to Chat Doctor! The knot, being a colored one, must be related to blood most probably blood clot within a vein as some of your co-workers mentioned! You might have some unnoticed injury, pressure, hit or deficiency of some blood component! Please see your physician for some blood works and direct relevant physical examination and further advises! Please revert to us if any more queries are there; wishing you good health!