The most common causes of knee pain are: meniscus injuries or wear and tear from arthritis( joint pain). It is also possible that you can get pain from under the knee cap: called patellofemoral pain. This however, is less common. Lastly, it is possible to get pain below the knee in the patellar tendon. This is called jumper’s knee or infraptellar tendonitis. The good news is that all of these can be treated with Physiotherapy!