neurologic disorders
Muscle Cramps
Etiology of Muscle Cramps
The most common types of leg cramps are Benign idiopathic leg cramps (leg cramps in the absence of a causative disorder, typically at night) Exercise-associated muscle cramping (cramps during or immediately after exercise) Although almost everyone has muscle cramps at some time, certain factors increase the risk and severity of cramps. They include the following: Tight calf muscles (eg, due to lack of stretching, inactivity, or sometimes chronic lower leg edema) Dehydration Electrolyte abnormalities (eg, low body levels ofpotassiumormagnesium) Neurologic or metabolic disorders Removal of a large volume of fluid during dialysis in patients with end-stage kidney disease Some medications Also, certain toxins can cause muscle cramps. 