Common causes of knee joint pain may include overuse, arthritis, and injury. A person may manage symptoms with anti-inflammatory medications or adopt some lifestyle changes, such as maintaining a ...

Many people’s knees squeak, crack, or crackle, a phenomenon known as crepitus. Most of the time, it’s no big deal at all. But a loud popping sound accompanied by pain and swelling indicates an injury.

Plica syndrome is a condition that causes chronic knee pain. It happens when the plica, a fold or thick band of tissue in the synovial tissue that protects the knee, develops inflammation. Plica ...