This condition is a problem with the peripheral nervous system. These are the nerves that branch out from your brain and spinal cord and travel to all of the other parts of your body.
This is a type of chronic, long-lasting, pain. In most cases, it develops in an arm or a leg that you have previously injured. With CRPS, you may have unexplained pain that won't go away. It may be severe, and it may spread.
Rheumatoid arthritis, a condition that can attack joints throughout the body, commonly affects the joints and surrounding tendons of the wrist and fingers. It can cause the joints to become swollen, painful and possibly deformed, interfering with normal hand function and significantly impacting a person’s quality of life.