Muscle Cramp

Muscular Cramp; Cramp, Limb; Cramp, Muscle; Cramp, Muscular; Cramps; Cramps, Limb; Cramps, Muscle; Cramps, Muscular; Limb Cramps; Muscle Cramps; Muscular Cramps
A sustained and usually painful contraction of muscle fibers. This may occur as an isolated phenomenon or as a manifestation of an underlying disease process (e.g., UREMIA; HYPOTHYROIDISM; MOTOR NEURON DISEASE; etc.). (From Adams et al., Principles of Neurology, 6th ed, p1398)