7 doctors weighed in:
What causes numbness in the hands that happened overnight?
7 doctors weighed in

Dr. Robert Coats II
Orthopedic Surgery
2 doctors agree
In brief: Nerve compression
Nerve compression, whether in the neck (pinched nerve or herniated disk) or in the arm ( carpal or cubical syndrome), can cause numbness or tingling in the arm. Peripheral nerve compression like carpal and cubical tunnel syndrome, typically produce symptoms in the hand/fingers.
Compression in the neck can cause symptoms throught the arm. Carpal tunnel syndrome is the most likely cause.

In brief: Nerve compression
Nerve compression, whether in the neck (pinched nerve or herniated disk) or in the arm ( carpal or cubical syndrome), can cause numbness or tingling in the arm. Peripheral nerve compression like carpal and cubical tunnel syndrome, typically produce symptoms in the hand/fingers.
Compression in the neck can cause symptoms throught the arm. Carpal tunnel syndrome is the most likely cause.
Dr. Robert Coats II
Dr. Robert Coats II
Thank
Dr. Steven Arbit
Physical & Rehabilitation Medicine
1 doctor agrees
In brief: Carpal Tunnel
I assume you mean numbness in the hands that happens overnight and not happened last night.
The most common cause of numbness in the hands that happens overnight is carpal tunnel syndrome. This is compression of the median nerve in the wrist. The easiest remedy for this complaint is using cock-up wrist splints that can be purchased in any drug store. This would be a good start.

In brief: Carpal Tunnel
I assume you mean numbness in the hands that happens overnight and not happened last night.
The most common cause of numbness in the hands that happens overnight is carpal tunnel syndrome. This is compression of the median nerve in the wrist. The easiest remedy for this complaint is using cock-up wrist splints that can be purchased in any drug store. This would be a good start.
Dr. Steven Arbit
Dr. Steven Arbit
Thank
Dr. Colin Kerr
Family Medicine
1 doctor agrees
In brief: Nocturnal numbness
The most common cause of numbness of the hands occurring at night is carpal tunnel syndrome.
This occurs because we usually sleep with our wrists curled up or flexed, and this puts a lot of pressure on the median nerve in the wrist. The symptoms usually only involve the thumb and next 2 fingers, maybe part of the 4th, but not the 5th. Other cause is pressure on a nerve in neck, can affect all 5.

In brief: Nocturnal numbness
The most common cause of numbness of the hands occurring at night is carpal tunnel syndrome.
This occurs because we usually sleep with our wrists curled up or flexed, and this puts a lot of pressure on the median nerve in the wrist. The symptoms usually only involve the thumb and next 2 fingers, maybe part of the 4th, but not the 5th. Other cause is pressure on a nerve in neck, can affect all 5.
Dr. Colin Kerr
Dr. Colin Kerr
Thank
Get help from a real doctor now
Dr. Eric Weisman
Board Certified, Neurology
32 years in practice
9M people helped
Continue
108,000 doctors available
Read more answers from doctors