DefinitionLeg pain is a common symptom and complaint.For more specific information, see:Foot painKnee painJoint painHip painMuscle painShin splintsAlternative NamesPain - leg; Aches - leg; Cramps - legCommon CausesLeg pain can be due to a muscle cramp (also called a charley horse). Common causes of cramps include:Dehydration or low amounts of potassium, sodium, calcium, or magnesium in the bloodMedications such as: Diuretics, which can cause you to lose too much fluid or mineralsStatins, which lower cholesterol and can cause muscle injuryMuscle fatigue or strain from overuse, too much exercise, or holding a muscle in the same position for a long timeAn injury can also cause leg pain from:A torn or overstretched muscle (strain)Hairline crack in the bone (stress fracture)Inflamed tendon (ten