What could be the cause of knee pain?

[Julia Mary]

What's Causing My Knee Pain?
If you have knee discomfort when walking, bending, or even just sitting still, or if you hear popping or clicking in your knee, etc., it might be a little annoyance or a sign of a more serious problem.
Most cases of knee discomfort may be traced back to either a catastrophic injury, overuse, or chronic wear and tear. Common knee problems are listed here, but our Knee Pain Diagnosis Symptom Checker is the best way to determine the exact nature of your condition. If you have any kind of pain then you should use generic Lyrica.
Osteochondritis dissecans (OCD) is a disorder characterized by discomfort and swelling in the joints due to damage to the articular cartilage cover caused by a localized osseocartilaginous separation at the level of the subchondral bone. Loose bodies in the knee might result if this is not addressed.
The bursa is a small, fluid-filled sac that acts as a gliding surface to minimize friction between tissues and can become inflamed if it is damaged or becomes inflamed.

Typical Knee Injuries
A rip in the cartilage of the knee is also known as a meniscus tear. Arthritis is a common result of knee instability because the stresses of weight bearing are concentrated on a smaller region of the tibia.
Knee ligament tears can affect any of the four major ligaments (PCL, MCL, LCL, and the most frequent, the ACL) (anterior cruciate ligament).
Osteoarthritis (OA) is a degenerative joint disease defined by the gradual loss of cartilage and subsequent exposure of bone at the affected joint. Pain, inflammation, edema, and stiffness are all symptoms caused by rubbing on the exposed bone.
The kneecap, or patella, can dislocate if there is an impact on the knee or if the leg is suddenly twisted or pivoted. When the patella moves forward off the femur, it is called a dislocation.