My Righrleg Was Ingured1work. Resulted In Bad Bruising From Mid

My righrleg was ingured1work. Resulted in Bad Bruising from mid thigh, down 2 my knee. It has been about A month,. Bruising is gone, but I still have A a good size lump, about 3&1/2 inches which meets my knee cap. It isn't exactly hard; is is alil squishy 2 the touch. Can U help Me better Understand, please & Ty. =}