The most common type—osteoarthritis, or wear-and-tear arthritis—occurs commonly in the joint at the base of the thumb, where the thumb meets the wrist. This joint, called the carpometacarpal ...

The base of the thumb—called the carpometacarpal joint, or CMC—is a common site for arthritis. Osteoarthritis (OA) can develop in the thumb. This condition gradually occurs from joint wear and ...

Here’s what you can do to look after arthritic hands. Osteoarthritis of the hands particularly affects the base of the thumb, so when you pinch or grip something very hard, the base of the thumb ...