Numbness of the Arm

Numbness of the Arm Numbness down part of or the entire arm can be caused by a variety of underlying medical conditions or factors.  A healthcare professional for proper and thorough evaluation is critical to obtain a diagnosis and treatment plan.  Here are some common causes of numbness...

Thumb or First CMC Joint Osteoarthritis

First carpometacarpal (CMC) joint arthritis, also known as thumb arthritis or basal joint arthritis, is a common form of osteoarthritis that affects the base of the thumb. The first CMC joint, located at the base of the thumb, is a saddle joint that allows the thumb its wide range of movement....