Knee Pain Causes
Knee pain can be due to several reasons such as knee injuries, types of arthritis, mechanical problems, and metabolic diseases.
Injuries
A knee injury can affect ligaments, tendons, or bursae (fluid-filled sacs) that surround the knee joint. Some of the commonest knee injuries include:
ACL injury
An ACL stands for the anterior cruciate ligament. Trauma to the ACL causes a tear in one of four ligaments that connect the thigh bone to the shin bone. This type of injury is common in professional athletes who play soccer, basketball, or indulge in other sports activities that require a sudden change in direction. The pain of ACL injury can be felt on the left or right side of the knee and may vary in intensity from mild to moderate.