Hi, thanks for writing to HCM.
Based on your description, I feel that the larger bone growth you are visualizing at the site of fracture
. It is the new bone that will be formed around the fracture ends resulting in consolidation and union of the fracture.
This is absolutely a normal phenomenon and nothing to worry about. This callus will slowly gets resorbed over a period of time and remodelling of bone occurs. No intervention is necessary.
Hope this information is helpful. Good day