Do you have stretch marks on your legs from teen growth spurts? Or the characteristic lump? In my case (and my son’s, and my father’s) the lump was not painful.
Osgood–Schlatter disease (OSD), also known as apophysitis of the tibial tubercle, is inflammation of the patellar ligament at the tibial tuberosity. It is characterized by a painful bump just below the knee that is worse with activity and better with rest. Episodes of pain typically last a few months. One or both knees may be affected and flares may recur. Risk factors include overuse, especially sports which involve running or jumping. The underlying mechanism is repeated tension on the growth p...
