Carpal Tunnel Syndrome in Pregnancy

What is actually happening

The NHS explains carpal tunnel syndrome as what happens "when the carpal tunnel inside your wrist swells and squeezes 1 of your nerves (median nerve)." The HSE describes the same mechanism. Tommy's puts it in one line: "pressure on a nerve in your wrist that causes tingling, numbness and pain in your hand and fingers."

Pregnancy is listed as a cause by all three. The NHS names pregnancy among its risk factors, alongside being overweight, repetitive wrist bending or hard gripping, arthritis, diabetes, family history and previous wrist injury. Tommy's states it more strongly: "Pregnant people are at high risk of developing it."

Why pregnancy in particular is not something these sources spell out mechanistically, so it is worth being precise rather than confident. What they do say is that carpal tunnel syndrome is caused by swelling inside the wrist, and separately that in pregnancy "your body holds more water than usual" (NHS), which causes swelling in the hands and fingers among other places. The two facts sit naturally together, and that is the standard explanation — but treat it as the reasonable reading rather than a claim any of these bodies makes outright.

What it feels like

The NHS list is precise:

• "an ache or pain in your fingers, hand or arm"
• "numb hands"
• "tingling or pins and needles"
• "a weak thumb or difficulty gripping"

Two features are diagnostic in practice. First, "these symptoms often start slowly and come and go" — Tommy's agrees that symptoms typically come on slowly. Second, and most recognisably, they are "usually worse at night."

Waking with hands that feel dead, having to shake them out, and then finding they settle within a few minutes is the classic pattern. Tommy's even builds the shaking into its advice: "give your hands a shake to help relieve pain at night."

What is normal, and how long it lasts

This is the genuinely reassuring part, and it is well established. Tommy's: "CTS should get better by itself in a few months if you have it because you're pregnant." The NHS says symptoms sometimes resolve on their own, "particularly if you have it because you're pregnant."

So the working assumption for pregnancy-related carpal tunnel is that it is temporary and that treatment is about getting you through it comfortably rather than fixing something permanent.

What actually helps

A wrist splint, worn at night

This is the main treatment, and the one with the clearest recommendation behind it. The NHS explains: "A wrist splint is something you wear on your hand to keep your wrist straight." It is worn at night, because that is when the wrist tends to bend and symptoms peak.

Be patient with it. The NHS says improvement may take up to 6 weeks; the HSE says at least 4 weeks of consistent use before improvement occurs. Take the longer figure: give it a month at minimum, and up to six weeks, before concluding it has not worked. Tommy's suggests asking your local pharmacist about one.

Change what your hands do

The NHS advises stopping or cutting down on activities that cause repeated wrist bending or hard gripping. Tommy's says the same: "Try to cut down on activities that make the pain worse, such as typing or other repetitive hand movements." If your job involves either, this is a reasonable thing to raise about workstation setup and breaks.

Hand exercises

Worth trying, but do not expect much. The NHS says hand exercises may help ease symptoms; the HSE is franker, noting that limited evidence suggests they may help. That is a weak recommendation and should be read as one.

Pain relief

Here the general carpal tunnel guidance needs a pregnancy correction. The NHS carpal tunnel page mentions paracetamol or ibuprofen for short-term relief while noting they do not address the underlying cause. In pregnancy, ibuprofen and other NSAIDs are not routinely recommended — NHS pregnancy guidance is to avoid NSAIDs and codeine-containing painkillers unless a doctor has specifically prescribed them. Tommy's advice for carpal tunnel in pregnancy is to ask your midwife about paracetamol if the pain is affecting your daily life.

Steroid injections and surgery

Both exist. The NHS and HSE describe steroid injections to reduce swelling, and surgery — a roughly 20-minute procedure with about a month's recovery — for cases that are getting worse and have not responded to other treatment. The NHS says surgery "usually cures CTS".

For pregnancy-related carpal tunnel, these are rarely the route taken, precisely because the condition is expected to resolve after birth. They are worth knowing about only if symptoms persist well beyond the postnatal period.

When to call

Tell your midwife. Tommy's advice is simply: "Talk to your midwife if you think you have carpal tunnel syndrome." It is a normal thing to raise at a routine appointment, and it gets you access to advice about splints and pain relief.

Ask to be seen sooner if:

• You have persistent numbness rather than intermittent tingling.
• Your thumb is weak, or you are dropping things or struggling to grip (NHS lists this among the symptoms; the NHS also advises specialist referral if symptoms are getting worse).
• A splint worn nightly for six weeks has made no difference.

The symptom that is not carpal tunnel

This overlap matters, because "my hands are swollen and my fingers feel odd" describes both a harmless nerve compression and a warning sign.

Contact your maternity unit, midwife or doctor immediately if you have a sudden increase in swelling in your face, hands or feet, particularly with any of:

• A severe headache, or one that simple painkillers do not shift.
• Vision problems such as blurring or flashing lights.
• Pain just below your ribs, or vomiting.
• Feeling severely unwell.

Those are the symptoms of pre-eclampsia, which the NHS says needs prompt monitoring and treatment. Call your local emergency number (999 in the UK and Ireland, 911 in the US and Canada, 000 in Australia, or 111 in New Zealand) if you collapse or have a seizure.

The distinction in practice: carpal tunnel builds slowly over weeks, is worst at night, affects the nerve's territory in the hand, and eases when you shake your hands out. Pre-eclampsia swelling arrives suddenly, involves the face as well as the hands, and brings company — headache, visual changes, rib pain. If you are not sure which you are describing, ring and describe both.