Carpal Tunnel

Carpal tunnel syndrome is caused by pressure on your median nerve, which runs the length of the arm, goes through a passage in the wrist called the carpal tunnel, and ends in the hand. The median controls the movement and feeling of your thumb, and also the movement of all your fingers except your pinky.
The carpal tunnel is narrowed as a result, usually from swelling. You may feel a burning, tingling, or itching numbness in the palm of your hand and thumb, or index and middle fingers.

Tendonitis

Tendonitis (also spelled tendinitis) is an acute condition where the tendons that connect muscle to bone become inflamed.
Tendons are fibrous cords of collagen that serve as flexible anchors in and around the joints of the body. They come in many shapes and sizes, from smalls ones which enable the movements of fingers, to larger ones, like the Achilles tendon, which help us stand or walk.
There are many reasons why a tendon can become inflamed and, when it does, it is can often be painful. The pain tends to be felt most profoundly at the insertion site where the tendon attaches to the bone. It can also be strongly felt where the muscle and tendon connect.
Chronic tendon problems are commonly referred to as tendinosis or tendonopathy. This simply refers to some pathologic condition of the tendon. This condition may cause pain, inflammation, and limited mobility.

Tennis Elbow

Tennis Elbow is a general term used to describe pain on the outside of the elbow. The most common causes is inflammation or degeneration of the tendon of the wrist extensor muscles as they insert into the elbow. It is also known as lateral epicondylitis or extensor tendinopathy.

Massage can be a useful treatment for tennis elbow, particularly more chronic conditions.