My very large abdominal hematoma is 3 weeks from when I fell. Still very firm and no change in size. When does it soften, resorb?

Weeks to months. Can take weeks to months for body to reabsorb this. Can try moist heat to the area 30 minutes at a time, several times a day to try and speed up the reabsorption process. Otherwise, it is just time. A LOT of time. Sorry. Best of luck. Dr R.