Probability of Carpal Tunnel During Pregnancy
~35%
Conditional probability in US
About 30-50% of pregnant women experience some degree of carpal tunnel syndrome, usually developing in the second or third trimester.
Pregnancy-related carpal tunnel syndrome affects approximately 30-50% of pregnant women, making it one of the most common musculoskeletal complaints during pregnancy. Symptoms typically develop during the second or third trimester due to fluid retention causing swelling that compresses the median nerve in the carpal tunnel.
Symptoms are similar to non-pregnancy carpal tunnel: numbness, tingling, and pain in the hand (particularly the thumb, index, and middle fingers), often worse at night. The dominant hand is usually more affected. Risk factors include fluid retention, gestational diabetes, high blood pressure, multiple pregnancies, and occupations involving repetitive hand movements.
The good news is that pregnancy-related CTS typically resolves on its own within weeks to months after delivery as fluid retention decreases. About 50% of women report significant improvement within 2 weeks postpartum, and 90% resolve within 12 months. Conservative management during pregnancy includes wrist splinting (especially at night), hand elevation, ice, and ergonomic modifications. Corticosteroid injections may be considered for severe cases but are generally avoided during pregnancy unless necessary.
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