Your brain and spinal cord are responsible for the function, control, and coordination of body activities, including providing for the senses of feeling and movement. Your body uses nerves as connections between the brain or spinal cord and the specific locations.
Nerves can connect into muscles to allow for movement. Nerves can also connect with the skin to provide feeling. Nerves from the spinal cord and brain are relatively large in size. As the nerves branch off from the main stem, they become smaller in size and their function more specialized.
Nerves located under the skin that provide for feeling are quite small. Because of their size and location, these nerves are often cut during surgery. In fact, it is impossible not to cut any nerves during surgery.
However, the abnormal skin feeling caused by this is usually in a very small area. In extreme cases, permanent nerve damage can occur, resulting in long-term numbness and loss of strength. Surgery can be attempted to repair the nerve, but with limited success.