Alternating between the right and left hand without a specific pattern I get spontaneous cramps of my finger flexors, sometimes affecting one, sometimes affecting more than one finger (predominantly thumb, pointing finger and middle finger), asymmetric occurrence. Status post C6/C7 fusion and Bryan prosthesis C5/C6 (2009). Physically very active (ski-racing and bicycling.
Hi, Overuse of a muscle, deny Chat Doctor.  In many cases, however, the cause isn't known. Although most muscle cramps are harmless, some may be related to an underlying medical condition, such as inadequate blood supply. Sometimes, it is postural because of compression of nerve roots. All you need to do is to keep changing your posture as much as possible. Magnesium, calcium and levocarnitine supplements are documented to help in large muscle cramps, you can try them as well. Take care. Hope I have answered your question. Let me know if I can assist you further.