• There are many possible causes of leg weakness.legs image by Astroid from Fotolia.com
  
  Leg weakness is a condition that affects many. The weakness can affect one or both legs. Either way it is uncomfortable, distracting and often frustrating. There are many causes of leg weakness. Consult with your doctor if you are experiencing leg weakness, as it may be the sign of a serious illness or injury.
  
  

Migraines

• Believe it or not, migraines can actually cause leg weakness. A migraine is an extreme headache that will often cause nausea and vomiting. Migraines are a result of the constriction of arteries in the brain, which prevents normal amounts of blood from reaching the brain. Along with leg weakness, migraine sufferers will often experience a temporary loss of vision, tingling in their hands and face and confusion during their migraines.
  
  

Disc Problems

• The Wrong Diagnosis website claims that leg weakness can be caused by disc problems. Discs are the connective tissue located between the vertebrae in the spine, which acts as a cushion between them. One of the symptoms of a disc problem, such as a herniated or ruptured disc or degenerative disc disease, is weakness in the legs.
  
  

Thyroid Disorders

• Two common thyroid problems are hypothyroidism, in which the thyroid gland is underactive, and hyperthyroidism, in which it is overactive. These thyroid disorders are often caused by autoimmune thyroid diseases, such as Graves’ disease and Hashimoto’s thyroiditis. Those with thyroid disorders may suffer from a long list of symptoms, including nervousness, weight fluctuations, anxiety and hypertension. According to the Wrong Diagnosis website, affected people can also experience leg weakness as a result of their thyroid problem.
  
  

Aortic Coarctation

• The Cure Research website claims that leg weakness can be a result of aortic coarctation, or narrowing of the aortic artery. This condition is congenital, meaning it is present at birth and cannot be acquired. Along with leg weakness, those with aortic coarctation can also experience heart murmurs, high blood pressure, cold legs, weak groin pulses and headaches.
  
  

Panic Disorder

• The Cure Research website states that more than three million adults in the United States will have panic disorder at some point in their lives. This common condition can cause chest pain, rapid pulse and difficulty breathing. Additionally, it can cause leg weakness. Often the symptoms associated with panic disorder are so severe, they are mistaken for the symptoms of a heart attack.