How long does it take for a hematoma to go away?
If the hematoma is small, it will take about 1 week to go away. If the hematoma is large it can take several weeks (4-6) to completely clear up. Hematoma will change in color from deep purple to pink-blue to green to yellow and then finally fade.I hope you find this information helpful. see. Hematoma, by definition, is a collection of blood outside the blood vessel. Sometimes hematoma can be a simple bruise and sometimes it accumulates in a pocket. So what I would recommend is to use ice for the few days and then start applying heat to try and dissolve the blood.