<unk> , also known as lateral epicondylitis, is a condition in which the outer part of the<unk>  becomes painful and tender. The pain may also extend into the back of the forearm and grip strength may be weak. Onset of symptoms is generally gradual. Golfer's<unk>  is a similar condition that affects the inside of the<unk> . It is due to excessive use of the muscles of the back of the forearm. Typically this occurs as a result of over use during work or sports, classically racquet sports. The diagnosis is typically based on the symptoms with medical imaging used to rule out other potential causes. It is more likely if pain increases when a subject tries to bend back the wrist when the wrist is held in a neutral position. A powered screwdriver can cause this injury if overused one-handed. It is classified as a chronic tendinosis, not a tendinitis. Treatment involves decreasing activities that bring on the symptoms together with physical therapy or other treatment gradually increasing loads. Pain medications such as NSAIDS or acetaminophen (paracetamol) may be used. A brace over the upper forearm may also be helpful. If the condition does not improve corticosteroid injections or surgery may be recommended although some experts recommend avoiding cortisone injections due to poor long-term results in high-quality trials. Many people get better within one month to two years. About 2% of people are affected. Those 30 to 50 years old are most commonly affected. The condition was initially described in 1873. The name "lawn<unk> " first came into use for the condition in 1882.
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