Final answer:
DeQuervain's tendinopathy is caused by the overuse of the wrist from repetitive motions, leading to inflammation and constriction of tendons near the thumb. It is prevalent among people who repeatedly perform specific movements with their wrist, and diagnosis is made through clinical exam or X-rays for severe cases. Preventive measures include stretching, varying exercises, and improving technique.
Step-by-step explanation:
DeQuervain's tendinopathy, also known as DeQuervain's tenosynovitis, is caused by the overuse of the wrist, particularly involving repetitive movements. This condition results when the tendons around the base of the thumb become irritated or constricted. The main cause of DeQuervain's tendinopathy is the chronic overextension or overworking of these tendons, leading to an inflammatory response. Factors such as repetitive hand motions, direct injury to the wrist or tendon, inflammatory arthritis, and certain hobbies or jobs can increase the risk of developing this condition. The tendons affected by DeQuervain's tendinopathy do not have an abundant blood supply and thus heal slowly.
Persons engaged in activities or occupations like playing sports, typing, or manual labor that involve repetitive wrist or thumb motions are at greater risk. Diagnosis is primarily through clinical examination, and severe pain may prompt an X-ray to rule out bone injury. In serious cases where the tendon has become torn, surgical repair may be required. Preventive measures for those at risk include proper stretching, changing exercises to reduce strain on the wrist, and improving technique through training or lessons.