Conversation: The conversation between human and AI assistant.
[|Human|] my grandson just went to the doctors from his knee down have turned purple the doc sent him for exrays haven t herd anything yet for the results but our doc said it was a lack of oxygen to his leg what would cause this he is seventeen years of age im worried
[|AI|]  Dear Sir, no need to worry, I have understood your concern, see its very common to have bluish discoloration due to injury, see as due to injury there will be a phase of inflammation and swelling due to compression of small vessels, this may due to injury to soft tissue ligament and capsular strains. But its temporary, and within 3-4 days it will be resolved if there is no fracture, currently need to apply ice massage and compression bandages and Apply foot elevation swelling and inflammation will slowly reduce. I hope you have satisfied with this answer.