Tenosynovitis occurs when tendons that pass through a synovial sheath become irritated and inflamed. It is most common in the wrist and hand. In acute stages there may be pain and heat. In sub-acute stages the fingers may be difficult to bend or straighten and there may be a gritty feel to the tendons as they move. It can be caused by trauma, repetitive stress, percussive movement or constant twisting which can cause the tendons to become irritated.
If there is acute inflammation massage is contraindicated. In sub-acute stages massage can help to reduce inflammation and prevent the accumulation of scar tissue.