- Thumb
- Index finger
- Middle finger
- Part of the ring finger
The little finger is generally not affected by classic carpal tunnel syndrome because it is supplied by a different major nerve.
Why is it often worse at night?
Many people sleep with their wrists bent.
Keeping the wrist in a flexed position can increase pressure within the carpal tunnel and aggravate symptoms.
As a result, someone with carpal tunnel syndrome may wake up several times during the night with tingling or numbness.
They may instinctively shake their hand or move their wrist to make the sensation go away.
If this happens regularly, it is worth discussing with a healthcare professional.
3. A Pinched Nerve in Your Neck Can Cause Hand Numbness
Not every nerve problem starts in the wrist.
The nerves that eventually travel into your hands originate from the spinal cord in your neck.
A problem involving the cervical spine can therefore cause symptoms farther down the arm.