Why do hands get numb?
Hand numbness presents as an abnormal sensation in the hands that can cause difficulty with hand function and discomfort with performing daily activities. Holding a pen, turning door knobs, or even resting your fingers on surfaces can feel uncomfortable. This sensation usually involves compression of the nerves. Other causes can be from circulation problems and diabetes with or without nerve compression. Nerve compression often presents as numbness, especially at night. Patients with nerve compression often report having to shake their hands and reposition in the middle of the night.
Numbness in the hand can also be a result of a laceration or trauma.
There are three main nerves of the hand: the radial, median and ulnar nerves. Each of these nerves branches out to different areas of the hand. If one of these nerves is damaged or compressed, patients can experience hand numbness in its supported area.