De Quervain's Tenosynovitis: Thumb-Side Wrist Pain in New Parents

You are three weeks into life with a newborn. You lift your baby from the cot, and a sharp, catching pain shoots along the thumb side of your wrist. By the evening, even turning a door handle or picking up a bottle makes you wince.

If that sounds familiar, you may well have De Quervain's tenosynovitis. It is common in new parents, it is rarely serious, and it usually responds well to sensible changes and the right rehab. It can feel relentless, though, when you cannot simply rest your hands because there is a baby who needs holding.

What is De Quervain's tenosynovitis?

Two tendons run along the thumb side of your wrist, one that moves your thumb out to the side and one that extends it. They pass through a narrow tunnel, or sheath, at the base of the thumb. When the tendons are overloaded, the sheath and tendons become irritated and thickened, and they no longer glide smoothly. The result is pain, and sometimes swelling or a creaky, catching sensation.

Typical signs include:

• Pain over the thumb side of the wrist, sometimes spreading into the thumb or up the forearm
• Tenderness or a firm swelling just above the base of the thumb
• Pain when gripping, pinching, twisting or lifting
• A clicking or snagging feeling when you move the thumb

Why does it affect new parents so often?

Babies are not hard on wrists because of their weight alone. It is the position and the repetition. Lifting a baby usually means your thumb is stretched out wide while your wrist is bent towards the little-finger side, which is exactly the position that squeezes those tendons in their tunnel. Do that dozens of times a day, add broken sleep, and the tissues have little chance to settle.

Other contributors include:

• Feeding positions. Supporting a baby's head or a bottle for long periods keeps the thumb and wrist loaded.
• Phone use. Scrolling and typing one-handed during night feeds adds more thumb work.
• Hormonal changes. Pregnancy and breastfeeding are associated with fluid retention and tissue changes, which may make the area more irritable. It is not the whole story, but it helps explain why it is seen so often in this period.
• Reduced recovery. Poor sleep and little downtime mean irritated tendons are rarely given a break.

It is not only mothers. Fathers and other caregivers get it too, and so do people who spend long hours on repetitive gripping or phone use.

What you can do at home

You cannot stop picking up your baby, but you can change how you do it.

• Lift with the whole hand. Scoop your baby with both hands under the body, with your wrists straight and your thumbs relaxed alongside your fingers rather than stretched out wide. Bring the baby close to your chest before lifting.
• Share the load. Use your forearms and a cushion to support the baby during feeds. A feeding pillow takes strain off the wrist.
• Think about the phone. Rest it on a stand or support it with the other hand, and use voice dictation where you can.
• Try a thumb spica splint. A supportive splint that holds the thumb and wrist in a neutral position can calm things down, particularly at night or during repetitive tasks. Wearing one all day is not usually ideal, as you still want gentle movement, so ask for guidance on how long to use it.
• Ice or heat. Whichever feels better, as short-term relief. Neither fixes the cause.
• Avoid pushing through sharp pain. Aim to keep pain at a low level during daily tasks, and avoid long periods of the aggravating positions.

A common test is the Finkelstein test, where you tuck your thumb into your fist and gently tilt the wrist towards the little finger. Sharp pain on the thumb side points towards De Quervain's, but it is not a diagnosis by itself. Other problems can mimic it, such as thumb-base arthritis, wrist joint irritation or a nerve problem, so it is worth having it checked.

How physiotherapy helps

Rest alone often calms symptoms but does not restore the tendons' capacity, so the pain tends to return when your load goes back up. A good physiotherapy assessment looks at what is actually provoking the tendons, including your lifting technique, feeding set-up, work habits and the wider chain from neck and shoulder to hand.

Treatment is usually a blend of:

• Load management. Practical changes that reduce irritation without leaving you unable to care for your baby.
• Splinting advice. What type, when to wear it and when to stop.
• Progressive exercise. Gentle tendon loading, then strengthening of the thumb, wrist and forearm so the tissues tolerate daily demands. This is the part that tends to give lasting results.
• Hands-on techniques. To ease muscle tension in the forearm and reduce discomfort while you rebuild.

For stubborn cases that have lingered for months, shockwave therapy can be a useful addition alongside exercise. If symptoms are severe or not settling, a GP or specialist may discuss a corticosteroid injection, and your physio can help you weigh up the options. Surgery is uncommon.

Many people improve over several weeks with the right approach, though timescales vary and depend on how long it has been going on and how much load you cannot avoid.

When to get it checked

Seek an assessment if the pain is not easing after a couple of weeks of adjusting how you lift and feed, if it is disturbing your sleep, or if you are losing grip strength. See a GP promptly if you have numbness or tingling, significant swelling, redness, heat or fever, or if the pain followed a fall or injury.

If thumb-side wrist pain is making daily life with your baby harder than it should be, you are welcome to book an assessment at our Vauxhall clinic. We can work out what is going on, show you how to protect the wrist day to day, and build a plan that fits around your new routine. If you have private health insurance with Bupa, AXA or Vitality, we can help you check what your policy covers.