What are the causes of knee pain?
Dr. Matthew Lawless talks about causes of knee pain. Click play to watch the video or read the transcript.

Injuries or diseases can cause knee problems, according to the National Institutes of Health (NIH). The most common cause of knee pain is arthritis, according to the NIH.
According to the Arthritis Foundation (AF), six types of arthritis can cause knee pain:
- Osteoarthritis – The most common form, this arthritis results when joint tissues deteriorate, causing bones to rub against each other. Knees are commonly affected by osteoarthritis
- Rheumatoid arthritis – A less common form, this arthritis is an inflammatory disease in which the body’s immune system attacks the joints, causing them to become damaged
- Infectious arthritis – Arthritis that is caused by an infection in the joint itself
- Juvenile arthritis – Arthritis that affects those age 16 or younger
- Psoriatic arthritis – A form of arthritis that is associated with psoriasis, a skin disease
- Reactive arthritis – A chronic form of the disease that results from a gastrointestinal, genital, or urinary infection
Other diseases that can cause knee pain include gout, Lyme disease, or lupus, according to the AF.
For more information about the causes of knee pain, talk to your doctor.
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