What Caused Knee Pain

 Knee pain can be caused by a sudden injury, an overuse injury, or by an underlying condition, such as arthritis. Treatment will vary depending on the cause. Symptoms of knee injury can include pain, swelling, and stiffness.





Symptoms


The location and severity of knee pain may vary, depending on the cause of the problem. Signs and symptoms that sometimes accompany knee pain include:



Swelling and stiffness

Redness and warmth to the touch

Weakness or instability

Popping or crunching noises

Inability to fully straighten the knee



Causes


Knee pain can be caused by injuries, mechanical problems, types of arthritis and other problems.



Injuries


A knee injury can affect any of the ligaments, tendons or fluid-filled sacs (bursae) that surround your knee joint as well as the bones, cartilage and ligaments that form the joint itself. Some of the more common knee injuries include:



ACL injury

Fractures.

Torn meniscus. 

Knee bursitis.

Patellar tendinitis.



Mechanical problems


Loose body.

Iliotibial band syndrome. 

Dislocated kneecap. 

Hip or foot pain. 




Types of arthritis



Osteoarthritis.

Rheumatoid arthritis.

Gout.

Pseudogout.

Septic arthritis.




How Can I Prevent Knee Pain?



Although you can’t prevent all injuries, you can take these steps to make them less likely.


Stop exercising if you feel pain in your knee.


If you want to make your workout more intense, always do it gradually.


Stretch your legs before and after physical activity.


Use kneepads to prevent bursitis, especially if you have to kneel a lot.


Wear shoes that fit well and offer enough support.


Keep your thigh muscles strong with regular stretching and strengthening.


If you’re overweight, work to drop some pounds so there’s less stress on all of your joints, including your knees.




If you have pain, weakness, or swelling around your knee, you may need a knee MRI. This test can help your doctor see what might be causing your symptoms.


MRI stands for magnetic resonance imaging. It’s a type of scan that uses a magnetic field, radio waves, and a computer to create detailed pictures of the inside of your body.


Unlike an X-ray, which takes pictures of your bones, a knee MRI lets your doctor see your bones, cartilage, tendons, ligaments, muscles, and even some blood vessels. The test can show a range of problems, including:


Damaged cartilage

Torn tendons or ligaments

Bone fractures

Osteoarthritis

Infections

Tumors



Your doctor may also order an MRI to see if you need knee surgery, or to see how well you’re healing after surgery.

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