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Overuse can lead to micro-tears in the soft tissues, which can become swollen and painful.
Swelling, in turn, can lead to pressure on the nerves, and conditions such as carpal tunnel syndrome. The longer the activity continues, the longer the recovery period is required and the greater the risk of chronic disorder. Further strain can lead to tears in the tendons. If adequate rest is not taken, the tendon fibers cannot heal, and may be permanently weakened. If this fluid is diminished or thickened from overuse or prolonged static postures, friction between the tendon and sheath can result.