Carpal tunnel syndrome during pregnancy

By trimester

Weeks 1–13

1st trimester

Carpal tunnel symptoms are less common this early, since fluid retention hasn't built up yet. If your hands already feel numb or tingly, mention it at your next visit so it's on record.

Weeks 14–27

2nd trimester

This is often when numbness and tingling first show up, especially in the morning or after repetitive hand use like typing or holding a phone. A soft wrist splint worn at night is a good first step.

Weeks 28–birth

3rd trimester

Symptoms tend to peak now, when fluid retention is at its highest. Night splints, shaking out your hands, and taking breaks from repetitive gripping all help, and the good news is this usually fades within weeks of delivery.

What does the evidence show for carpal tunnel syndrome?

• Extra fluid and hormone shifts during pregnancy can put pressure on the nerve that runs through your wrist, which is what triggers carpal tunnel symptoms in the first place. 1
• Carpal tunnel syndrome is the most common nerve-compression problem in the body, and during pregnancy it usually shows up as hand numbness that's worse at night. 2
• Wrist numbness and tingling are common late in pregnancy: one large study found signs of carpal tunnel syndrome in about 23 percent of women by the third trimester. 3
• A simple wrist splint worn at night is one of the most effective ways to ease pregnancy-related carpal tunnel symptoms, and it's considered a safe first option to try. 4
• For most women, carpal tunnel symptoms ease up soon after delivery, though for some they can linger through breastfeeding or a little longer. 5
• Typical carpal tunnel syndrome covers the first three digits and the lateral half of the fourth and flares at night while lying down, while advanced compression shows as permanent sensory loss, atrophy of the thenar eminence, hand weakness, and clumsiness with doorknobs and buttons. 6

When should I call my provider about carpal tunnel syndrome?

Pregnancy carpal tunnel comes and goes, wakes you at night, and stays inside the thumb, index, middle, and half the ring finger. Call your provider once the numbness stops letting up and turns constant, if the muscle pad at the base of your thumb starts looking flattened or wasted, or if your grip gives out and you fumble doorknobs and buttons or drop things. Those signs point to nerve compression past the stage a night splint covers. Numbness spreading well outside that finger pattern is worth reporting too, since it suggests the median nerve is not the whole story. Whatever the pattern, any symptom that feels beyond your usual range is a reason to call: obstetric teams expect these questions and would rather hear early than late.