The ulnar nerve as it travels through the lower part of the arm, the elbow and into the top part of the forearm runs through several areas in which it can be compressed or stretched. This compression may occur without an apparent cause, but can also be due to prominent areas of bone at the elbow from arthritis, or from injury or a ganglion (bubble of fluid) from the joint. If the nerve is compressed it can stop working properly which causes symptoms of pins and needles and numbness in the little finger, and the ring finger side of the hand, with pain often on the inner aspect of the elbow, which can travel towards your hand. Some people will feel that their hand is less strong or less dexterous. The symptoms are a bit like when you hit your “funny bone” (the “funny bone” is, in fact, your ulnar nerve). The medical term for problems with the ulnar nerve at your elbow is ulnar neuropathy or cubital tunnel syndrome. The symptoms often occur at night, and when bending the elbow for prolonged periods.