![small bone/lump on left knee doesn't hurt but no one else i know has it just want to know if i should get it checked out or something : r/medical small bone/lump on left knee doesn't hurt but no one else i know has it just want to know if i should get it checked out or something : r/medical](https://i.redd.it/3ymuzjvmrzk41.jpg)
small bone/lump on left knee doesn't hurt but no one else i know has it just want to know if i should get it checked out or something : r/medical
![Hard lump (feels like bone) under kneecap. Def not on right leg. Only left, and no pain. I exercise a lot (basketball and running). Any help on what this is? : r/AskDoctorSmeeee Hard lump (feels like bone) under kneecap. Def not on right leg. Only left, and no pain. I exercise a lot (basketball and running). Any help on what this is? : r/AskDoctorSmeeee](https://preview.redd.it/hcnxcp6e4d371.jpg?auto=webp&s=14929ebb13f06c2af5da4c9117649f2e2e75e44f)
Hard lump (feels like bone) under kneecap. Def not on right leg. Only left, and no pain. I exercise a lot (basketball and running). Any help on what this is? : r/AskDoctorSmeeee
![Wear debris pseudotumor following total knee arthroplasty: a case report | Journal of Medical Case Reports | Full Text Wear debris pseudotumor following total knee arthroplasty: a case report | Journal of Medical Case Reports | Full Text](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2F1752-1947-3-9304/MediaObjects/13256_2008_Article_927_Fig1_HTML.jpg)