Question

What’s the main cause of osteoarthritis

Answer 1

Answer:

wear and tear on a joint

Explanation:

Answer 2

Answer:

Primary osteoarthritis is mostly related to aging. With aging, the water content of the cartilage increases and the protein makeup of cartilage degenerates. Repetitive use of the joints over the years causes damage to the cartilage that leads to joint pain and swelling.