What is carpal tunnel syndrome?
The carpal tunnel is quite literally a tunnel — a packed fibro-osseous tunnel — located on the palm side of the wrist. Normal pressures in this tunnel are 20-30 mmHg. The median nerve, which runs down the length of your arm, passes through the carpal tunnel to your palm side. The median nerve is responsible for controlling sensation and movement in the thumb and first three fingers.
When the median nerve becomes chronically compressed, this first will result in demyelination and eventually in axonal death, which will lead to tingling, numbness, and pain in the thumb, index, middle, and ring fingers. This is carpal tunnel syndrome.
What causes carpal tunnel syndrome?
Carpal tunnel syndrome occurs when there is swelling or a buildup of fluid in the wrist. It is often associated with professions that require repetitive movement of the wrist, or strong grips, such as computer workers, mechanics, assembly line workers, musicians, painters, and gardeners.
Since swelling and water retention are incredibly common during pregnancy, so are conditions like carpal tunnel syndrome, may occur as a result of swelling.
What does carpal tunnel syndrome feel like?
Not sure whether the symptoms you’re experiencing are due to CTS? These are the most common signs and symptoms of CTS, experienced in most cases from week 30 and on of pregnancy.
- Tingling or numbness in part of the hand (thumb, index, middle, and ring fingers)
- Throbbing or burning sensation in the hands, wrists, and fingers
- Stiffness or cramping of hands, especially in the morning
- Thumb weakness
- Trouble gripping objects or performing tasks such as opening jars or buttoning a shirt.
CTS is usually worse in your dominant hand, and in more than half of pregnancy carpal tunnel syndrome cases, it occurs in both hands.