The knee joint is probably the most frequently damaged jointand is particularly vulnerableas it takes the full weight of your body.
However, knee pain isn't always a joint problem. Learn about the most common causes of knee pain and what you should do.
The most common and more unusual causes of pain ina singlejoint are described below.
If you've injured the joint recently and it suddenly becomes painful again, thethin layer of tissue lining the joints and tendons may be inflamed a condition calledtraumatic synovitis. It usually doesn't cause any redness or heat.
You should be able to manage injury-related swelling at homewith anti-inflammatories , an icepack andrest.
If the skin over thejoint is hot and red, and the pain comes in repeated attacks, the cause is likely to be either gout or pseudogout.
Both conditions are types of arthritis.
Gout usually affects the joint of the big toe first, before affecting other joints. It's important to correctly diagnose gout, as treatmentwill prevent future attacks of joint pain and disability.
Pseudogout is a similar condition to gout, but usuallyaffects the knee joint first.
See your GP ifyou think you have either condition.
Knee pain that feels worse when going up or down stairs could be a sign of a damaged kneecapa condition calledchondromalacia patellae.This shouldn't cause any redness or heat around the knee.
The cause isn't really understood, but it can be linked to overuse of the knee.
You can treat this problemyourselfwith anti-inflammatories , an icepack andrest.
If you've recently had an injury to the knee joint, such as a torn ligament or knee fracture,it maycause bleeding into the joint spaces. This is known as haemarthrosis.
This is more likely to happen to people on anticoagulants , such as warfarin .
Signs of haemarthrosis are:
You should go to hospital immediately for treatment if you have a very swollen knee.
Sudden pain in a joint is less commonly caused by:
Rarely, the cause may be:
Read about the common causes of joint pain, including injury and arthritis.
Knee pain The knee joint is probably the most frequently damaged jointand is particularly vulnerableas it takes the full weight of your body. However, knee pain isn't always a joint problem. Learn a
Rheumatoid arthritis Rheumatoid arthritis is another type of arthritis that causes pain and swelling in the joints usually the hands, feet and wrists. The pain may come and go in the early phases,