Numbness commonly affects nerves outside of the brain and spinal cord, usually causing a lack of sensation in the arms, legs, hands and feet.

How do you know if you have numbness?

Definition. Numbness describes a loss of sensation or feeling in a part of your body. It is often also used to describe other changes in sensation, such as burning or a pins-and-needles feeling. Numbness can occur along a single nerve on one side of the body, or it may occur symmetrically, on both sides of the body.

How does numbness feel like?

Numbness is a symptom in which a person loses feeling in a particular part of their body. Sensations may be focused on one body part, or you may feel tingly all over, as if you're being pricked with many small needles.