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What causes general weakness and knee pain? 5 possible conditions

See a list of possible causes in order from the most common to the least.

1

What is Fibromyalgia?

Fibromyalgia is a disorder tied to widespread pain in your muscles and bones, areas of tenderness, and fatigue. Learn about its symptoms, treatment, and more.

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2

Sports Injuries

Learn about common injuries that occur in the major regions of the body when playing sports, including concussions, neck strain, torn rotator cuffs, tennis elbow, golfer's elbow, wrist sprains, back pain, hip injuries...

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3

Ankylosing Spondylitis

Ankylosing spondylitis is a form of arthritis that primarily affects your spine. It causes severe inflammation of the vertebrae that might eventually lead to chronic pain and disability.

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4

Rheumatoid Arthritis Overview

Rheumatoid arthritis is an autoimmune disease. It causes joint problems. In autoimmune diseases, the immune system mistakes the body's own cells for invaders.

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5

Rheumatic Fever

Rheumatic fever is a complication of strep throat. If it's left untreated, it can cause permanent damage to your heart. Find out about symptoms and treatment.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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