Which of the following best describes carpal tunnel syndrome?

Carpal tunnel syndrome is best described as a condition that arises from repetitive motions or excessive use of the hands, particularly when using handheld devices or performing tasks that require prolonged wrist flexion or extension. It occurs when the median nerve, which runs through a narrow passage in the wrist known as the carpal tunnel, becomes compressed. This compression can lead to symptoms such as numbness, tingling, pain, and weakness in the hand and fingers.

Understanding the context of carpal tunnel syndrome is essential. While ergonomic adjustments and certain forms of arthritis can contribute to discomfort in the wrist, they do not specifically define carpal tunnel syndrome. Additionally, it is not caused by viral infections but rather by mechanical stress on the median nerve due to repetitive hand movements or poor wrist positioning during activities. Hence, the emphasis on the excessive use of handheld devices accurately captures one of the common causes of this condition.