It is also a large weight-bearing joint, and much used in normal living activities and in sport. It is thus subject to a large range of possible injuries and disorders.
Conditions causing knee pain can conveniently be divided into acute and chronic.
The pain itself can take many forms depending on what caused it.
This can range from sudden sharp pains when moving the knee to dull aches that last for several months.
Explaining the kind of pain to your doctor in as much details as possible should help them to correctly diagnose your problem.
What is knee pain?