![]() In some cases, it may be harder to move your fingers in and out, or to manipulate objects. The feeling of "falling asleep" in the ring finger and little finger, especially when your elbow is bent.Some people wake up at night because their fingers are numb. They happen more often when the elbow is bent, such as when driving or holding the phone. Numbness and tingling in the ring finger and little finger are common symptoms of ulnar nerve entrapment.Most of the symptoms, however, occur in your hand. ![]() Repetitive or prolonged activities that require the elbow to be bent or flexedĬubital tunnel syndrome can cause an aching pain on the inside of the elbow.Prior fracture or dislocation of the elbow.Some factors put you more at risk for developing cubital tunnel syndrome. This is commonly called "hitting your funny bone." A direct blow to the inside of the elbow can cause pain, electric shock sensation, and numbness in the little and ring fingers.Fluid buildup in the elbow can cause swelling that may compress the nerve.Leaning on your elbow for long periods of time can put pressure on the nerve.Over time, this sliding back and forth may irritate the nerve. In some people, the nerve slides out from behind the medial epicondyle when the elbow is bent.For example, many people sleep with their elbows bent, which can aggravate symptoms of ulnar nerve compression and cause you to wake up at night with your fingers asleep. Because this stretching can irritate the nerve, keeping your elbow bent for long periods or repeatedly bending your elbow can cause painful symptoms. When your bend your elbow, the ulnar nerve must stretch around the boney ridge of the medial epicondyle.There are several things that can cause pressure on the nerve at the elbow: The ulnar nerve is especially vulnerable to compression at the elbow because it must travel through a narrow space with very little soft tissue to protect it. In many cases of cubital tunnel syndrome, the exact cause is not known.
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