Osteoarthritis (OA) falls under the Pain category.

Evidence-based

Osteoarthritis (OA)

Written by:

Louie Neri, Gregory Lopez

Fact-checked

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•Last Updated: November 20, 2025

Osteoarthritis (OA) is a joint disease involving cartilage degradation. It’s not clear what exactly causes OA, but some risk factors include joint injury, overweight or obesity, aging, misaligned joints, and family history. Lots of supplements have been studied in people with OA, as have lifestyle interventions including weight loss and exercise.

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Last Updated:November 20, 2025

Overview

What is osteoarthritis?

What are the main signs and symptoms of osteoarthritis?

How is osteoarthritis diagnosed?

What are some of the main medical treatments for osteoarthritis?

Have any supplements been studied for osteoarthritis?

How could diet affect osteoarthritis?

Are there any other treatments for osteoarthritis?

What causes osteoarthritis?

Frequently Asked Questions

What’s the difference between osteoarthritis and rheumatoid arthritis?

What’s the difference between osteoarthritis and osteoporosis?

Does joint damage on imaging show how much osteoarthritis can affect physical function?

Does running or resistance training cause osteoarthritis?

References