Knee Pain

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Knee pain facts

  • Knee pain is a common problem with many causes from acute injuries to medical conditions.
  • Knee pain can be localized or diffuse throughout the knee.
  • Knee pain is often accompanied by physical restriction.
  • A thorough examination will usually establish the diagnosis of knee pain.
  • The treatment of knee pain depends on the underlying cause.
  • The prognosis of knee pain is usually good although it might require surgery or other interventions.

What is knee pain?

Knee pain is a common problem that can originate in any of the bony structures compromising the knee joint (femur, tibia, fibula), the kneecap (patella), or the ligaments and cartilage (meniscus) of the knee. Knee pain can affect people of all ages, and home remedies can be helpful unless it becomes severe.

What are knee pain symptoms and signs?

The location of the knee pain can vary depending on which structure is involved. With infection, the whole knee might be swollen and painful, while a torn meniscus or fracture of a bone gives symptoms only in one specific location.

The severity of the pain can vary as well from a minor ache to a severe and disabling pain.

Some of the other findings that accompany knee pain are

  • difficulty walking due to instability of the knee,
  • locking of the knee (unable to bend the knee),
  • redness and swelling,
  • inability to extend the knee.
Medically Reviewed by a Doctor on 1/30/2014

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Find out more about the causes, treatment, and various symptoms of knee pain.

Your Knee Pain: Is It Chondromalacia?

Chondromalacia, technically termed chondromalacia patellae, is the most common cause of chronic knee pain. The condition is also called the patellofemoral syndrome.


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