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What are hand cramps? Cramps in your hand can arise from a number of different causes. Hand cramps develop as a result of conditions affecting muscles and nerves in your hand. Trauma or injury to a nerve in your hand can also cause hand cramps. Even breathing too fast (hyperventilation) can result in hand cramps, as carbon dioxide levels in the blood become too low. Everyday, simple reasons, such as fatigue from overuse, can lead to temporary, acute cramps in the hand.
The median nerve, which runs through the arm and hand, can cause swelling pain and numbness if injured. Damage to the ulnar nerve causes swelling, pain and numbness in the forearm, hand, and ring and little fingers. Hypoparathyroidism is a rare condition that can cause muscle twitches, seizures, cramps, tingling, and more. Dupuytren's contracture is a condition of the hand tissue that causes the fingers to curl. Diabetic neuropathy is a nerve condition of the extremities causing numbness, tingling, and pain. Scleroderma is an uncommon immune disorder that causes collagen to build up in the tissue, making it harden. Tetany is a mineral imbalance causing painful muscle cramps and twitches in the hands, feet, face, and larynx.