I was in a car accident about a year and a half ago. The dashboard caved in on my legs during impact and hit both of my knees really hard. They were both bruised pretty badly. Turns out, I tore the PCL in my left knee. On my right knee, there was just bruising. However, the bruise turned numb over time and is still there. There's no discoloration anymore, but there's still a lump. It's kinda like someone took a piece of fabric and sewed it in inside my knee. It covers most of my kneecap and that inner part of my knee. I can't kneel without sharp pain in my kneecap. I've tried to talk to my doctor about it but she keeps telling me she doesn't know what it is but that I should leave it. She also said it'll either go away on its own or I'll have it the rest of my life. I'd really like to find out what it is!!