How Does Carpal Tunnel Syndrome Occur?
Carpal Tunnel Syndrome (CTS) occurs when the median Nerve, which runs from the forearm into the palm of the hand, becomes pressed or squeezed at the wrist. The carpal tunnel - a narrow, rigid passageway of ligament and bones at the base of the hand - houses the median nerve and tendons. Swelling in this tunnel can irritate the nerve, leading to the well-known symptoms of numbness, tingling, and weakness in the hand and wrist, particularly in the thumb, index, and middle fingers.
Often, this swelling is caused by repetitive motions of the wrist or hand, especially if the wrist is flexed or extended. Other contributing factors may include anatomical differences, wrist injuries, and conditions like rheumatoid arthritis, diabetes, or fluid retention during pregnancy.
The onset of CTS is usually gradual, with symptoms often appearing during activities that involve the hand and wrist. As the condition progresses, symptoms can occur more frequently or even persist during periods of rest. The discomfort can extend from the wrist up to the arm, affecting overall hand function and strength. Early detection and management are crucial to prevent permanent damage to the median nerve.
