Hi, thanks for using healthcare magic
When any part of the body experiences trauma or healing is occuring, fibrosis
can occur. This is the formation of excess connective tissue
during a repair process or reaction.
It is likely that the lumps that you are seeing are as a result of fibrosis (scar tissue). In some cases fibrosis can improve slightly in some persons with resolution of the lesions,if they remain and are bothersome then you can contact your doctor about removal.
I hope this helps