carpal tunnel syndrome.
last revised · reviewed 2026-07-05
Carpal tunnel syndrome — tingling, numbness, and aching in the fingers and hand — affects up to a third of pregnant women, usually in the third trimester. Pregnancy fluid retention squeezes the nerve at the wrist; night splints help most women, and it typically resolves after birth.
what it feels like
Pins and needles, numbness, or burning in the thumb, index, and middle fingers, often waking you at night or greeting you first thing in the morning. Hands may feel clumsy or weak — dropping things, struggling with buttons — and shaking the hand out often brings relief.
why it happens
The median nerve reaches the hand through a narrow tunnel at the wrist with no room to spare. Pregnancy fluid retention swells the tissues inside that tunnel and compresses the nerve — producing symptoms precisely in the territory it supplies: thumb, index, middle finger, and half the ring finger.
what helps
- Wear a wrist splint at night to hold the wrist straight — the single most effective self-help measure; ask your midwife, physiotherapist, or pharmacist
- Shake or dangle your hands when symptoms wake you
- Avoid sleeping with wrists curled under your pillow or chin
- Take regular breaks from repetitive hand work — typing, scrolling, knitting — and vary your grip
- Elevate your hands on a pillow when resting to help fluid drain
- Gentle wrist and finger stretches through the day
- Ask for a physiotherapy referral if symptoms interfere with daily life — more options exist
when to call your midwife or doctor
- Constant numbness (not just intermittent tingling), or visible wasting of the muscle at the base of the thumb — ask your doctor for prompt review
- Hand weakness that makes you drop things regularly or affects safety
- Sudden swelling of the hands and face together, especially with headache or vision changes — think pre-eclampsia; call your midwife or doctor the same day
- Symptoms persisting well beyond birth — effective treatments exist, so see your doctor
This page is general information, not a diagnosis. When in doubt, call — no midwife has ever minded a careful question.
common questions
Why does pregnancy cause carpal tunnel syndrome?
Late-pregnancy fluid retention swells the tissues inside the carpal tunnel — the narrow passage at the wrist the median nerve travels through — and compresses the nerve. That produces the classic tingling and numbness in the thumb and first fingers, typically worst at night.
Will pregnancy carpal tunnel go away after the baby is born?
For most women, yes — symptoms improve within weeks of birth as fluid retention resolves, though full recovery can take a few months, especially while breastfeeding. If numbness or weakness persists, see your doctor: splinting, steroid injections, and minor surgery are all effective.
Why are my hands worse at night?
During sleep, wrists tend to curl, which narrows the tunnel further, and fluid redistributes into the arms when you lie down. Both squeeze the nerve harder — hence the 3am pins and needles. A night splint holding the wrist neutral prevents the curling and helps most women quickly.
read it in context
Carpal tunnel syndrome tends to show up around these weeks of pregnancy:
related symptoms
- Shortness of breath
Mild breathlessness affects up to 7 in 10 pregnant women — progesterone drives you to breathe more deeply from early pregnancy, and later the growing uterus presses the diaphragm upwards.
- Frequent urination
Needing to wee more often is one of the earliest pregnancy signs, driven by increased blood flow to the kidneys and hormonal changes.
- Itchy skin
Mild itching is common in pregnancy as skin stretches over the bump and hormones make it drier.
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