Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
It is very strange that the lump has occurred 6 days after the injury
. Many times the abdominal organs bleed after a few days of injury and then you need an urgent USG abdomen to be sure what is the problem. I prescribe my patients repeat USG abdomen if there is a blunt trauma
as in your case.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
In future if you wish to contact me directly, you can use the below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.