Blackberry thumb

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Black·ber·ry thumb

(blak'ber-ē thŭm)
A general term used to describe the clinical signs and symptoms of a repetitive motion injury of the hand, thumb, or fingers caused by overuse of a personal digital assistant type device.
See also: tendinitis
References in periodicals archive ?
The exact causes of Blackberry thumb are not clear, but thumb tendons can become swollen and painful through overuse.
And if you're concerned about so-called BlackBerry thumb, the repetitive strain injury caused by typing on your mobile, you needn't be.
The best solution to prevent BlackBerry Thumb says Miller, is to "Listen to your body, be aware of your symptoms and take personal responsibility.