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Medical Health Encyclopedia
Leg pain
Definition
Leg pain is a common symptom and complaint.
For more specific information, see:
Alternative Names
Pain - leg; Aches - leg; Cramps - leg
Considerations
Common Causes
Leg 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 blood
- Medications such as:
- Diuretics, which can cause you to lose too much fluid or minerals
- Statins, which lower cholesterol and can cause muscle injury
- Muscle fatigue or strain from overuse, too much exercise, or holding a muscle in the same position for a long time

An injury can also cause leg pain from:
- A torn or overstretched muscle (strain)
- Hairline crack in the bone (stress fracture)
- Inflamed tendon (tendinitis)
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Shin splints -- pain in the front of your leg related to overuse or repetitive pounding
Other common causes of leg pain include:
- Atherosclerosis that blocks blood flow in the arteries (this type of pain, called claudication, is generally felt when exercising or walking and relieved by rest)
- Blood clot (deep vein thrombosis) from prolonged bed rest
- Infection of the bone (osteomyelitis) or skin and soft tissue (cellulitis)
- Inflammation of the leg joints by arthritis or gout
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Nerve damage -- common in diabetics, smokers, and alcoholics (symptoms include numbness, tingling, or a sensation of pins-and-needles)
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Varicose veins
Less common causes include:
- Benign tumors or cysts of the femur or tibia (osteoid osteoma)
- Drugs such as allopurinol and corticosteroids
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Legg-Calve-Perthes disease -- poor blood flow to the hip that may stop or slow the normal growth of the leg
- Malignant bone tumors (osteosarcoma, Ewing sarcoma)
- Sciatic nerve pain (radiating pain down the leg) caused by a slipped disk in the back.
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Slipped capital femoral epiphysis -- usually seen in boys and overweight children between 11 and 15 years old
Review Date: 08/08/2009
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of
Physician Assistant Studies, University of Washington, School of
Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director,
A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).
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