My boyfriend he is 26 and he has a minuture dirthbike and he was riding one day and hit the side of a truck going about 25 miles he didnt break aything the hosptial said but he did injured his ankle and cafe area pretty bad to where his foot swelled up real bad and was bruised everything is starting to clear up but on his lower part of his leg right above his ankle(where he injured it real bad) is a bruiseing and what look like fuild under his skin that wont go away its been there since the accident that was over a month ago everything else cleared up and stop hurting but this area what could this be it looks like its water sitting under his skin on his lower part of his leg should we go back and get this checked out it dosnt hurt him but its real bad looking..