question: My 84 year old mother developed a large hematoma in the upper biceps area after acute hemarthrosis of the shoulder a week ago. The doctor took her off of Warfarin (prescribed for deep vein thrombosis) immediately and over the next several days the blood has migrated into her arm and chest in spectacular colours! This morning it appears that the hematoma is swelling again. Her upper arm has gone from 13 inches at 2:00 with a 2.5 x 1.5 inch swelling to 13.75 inches with a 3.25 inch swelling at 5:30. Should she be concerned, or should she just ice it and call the doctor in the morning?