Briefly, osteoarthritis happens when the cartilage
that cushions the ends of bones in your joints gradually deteriorates
. Cartilage is a firm, slippery tissue that permits nearly frictionless joint motion.
In osteoarthritis, the slick surface of the cartilage becomes rough
. Eventually, if the cartilage wears down completely, you may be left with bone rubbing on bone.
Factors that may lead to osteoarthritis include:
- Repeated trauma or surgery to the joint structures
- Abnormal joints at birth (congenital abnormalities)
- Rheumatoid arthritis
- Other hormone disorders
Keywords: cause osteoarthritis; causes osteoarthritis.