Wrist
Tenosynovitis is a condition involving the constriction or irritation of tendons around the base of the thumb resulting in pain, tenderness, swelling and an inability to grasp objects or twist the wrist. It may be at the base of the thumb (in the case of De Quervain’s Tendinitis) or the back of the wrist (in the case of Intersection Syndrome). Primarily caused by overuse, genetic predisposition, Rheumatoid Arthritis, Tenosynovitis of the wrist is normally relieved by rest, icing, splinting, anti-inflammatory medications or cortisone injection. Under severe circumstances surgery may be recommended to relieve constriction.

Fingers (Trigger Finger)
Trigger Finger is a condition in which finger flexor tendons become swollen and get stuck and pop in their sheaths; although most commonly occurring due to genetic predisposition, other causes may include a specific activity as well as diseases like Rheumatoid Arthritis and other autoimmune disorders. Symptoms usually include fingers that are stiff and click upon movement as well as tenderness on the palm near the base of the affected finger. Mild cases of Trigger Finger generally respond well to rest, splinting, gentle exercises, anti-inflammatory medication, ergonomic training and cortisone injection. More persistent cases may benefit from surgical release.