Orthopedics Questions? Ask an Orthopedist for Answers ASAP
I am an Orthopaedic surgeon and I would be happy to help you today.
How does the bump feel when you touch it? Is it soft to touch or firm or hard?
Is it tender to touch?
Thanks for replying .
Most likely this is a collection of fluid coming from either one of the injured joints or from sheath of a tendon passing through the area.
You should just observe it and you need to have a doctor look at it if it becomes painful or increases in size.
You may use a compression bandage like an ace bandage over it.