Tendonitis (sometimes caused by tennis elbow) happens when the tendon swells up and becomes painful. It is most often due to repetitive movements in the arm which cause stress and injury to the tendon.
Golfer’s Elbow causes pain on the inside of the elbow (as oppose to tennis elbow that occurs on the outside). It is not only limited to golfer’s however, it is often the result of a repetitive movement like the swing of a golf club. Much like the tennis elbow the symptoms are similar only in the inside of the arm and include pain, swelling, stiffness and weakness.
Osteoarthritis is the most common type of arthritis in the UK and often effects the fingers. It causes the fingers to become stiff, painful and swollen over time making it difficult to perform daily tasks. Osteoarthritis can also effect other areas of the body such as the hips and knees.