Calculate the gross margin percentage, mark up percentage and gross profit of a sale from the cost and revenue, or selling price, of an item.
While frequent cramping of the hand is often linked to arthritis, hand cramps can be a symptom of various other chronic diseases. Diabetes, for example, is commonly linked to hand cramps because the condition often leads to poor circulation in the limbsâa leading cause of muscle cramping.
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.