hi, my son always had a hematoma in the extremities ,we dont know were it came from.....his peadiatrician did already a test for his blood but his doctor says its okay........since he was a child he always had like that...his already 9 years old ....a little bump in his extremities his getting like this...what shall we do???/any recommendation or test about my sons condition???i really appreaciate your answers soon because im always bothered about it .....thank you and more power!!!