8 Causes of Sudden Leg Weakness


Sudden leg weakness could be a symptom of a severe underlying health condition and should be assessed by a medical professional as soon as possible. In many cases, it might signal a medical condition that requires emergency care. This article will discuss the common causes of sudden leg weakness and other symptoms that persons may need to know about.

Slipped Disc

A slipped disc happens when the jellylike matter found inside the discs cushion the vertebrate extends beyond a tear in the exterior, resulting in severe pain. This could occur due to an age-related degenerative change in the spine or injury. If the slipped disc happens to apply pressure unto a nerve in close proximity, the result could be excruciating pain and lack of sensation along the affected nerve, often traveling down the leg. Additional symptoms include pain that worsens when sitting or standing; muscle weakness; and burning or tingling sensation in the impacted areas. Get to a health care professional if the back or neck pain travels down your leg or arm or your experience tingling, numbness or weakness. Symptoms are typically relieved within a matter of weeks through conservative treatment that includes rest followed closely by physical therapy.


A stroke happens when a blood vessel in the brain ruptures or the blood flow to the brain is cut off due to a blockage. It could result in abrupt weakness or numbness in the arms, face, and legs. Additional symptoms and signs of a stroke include difficulty speaking; sudden confusion; sagging of one side of the face or unevenness in the smile or severe, sudden headaches. If you or someone else is experiencing a stroke, immediately dial 911. Rapid treatment is crucial to the recovery from a stroke event. Early treatment could decrease the likelihood of long-term complications.

Guillain-Barre Syndrome

Guillain-Barre syndrome is an unusual autoimmune disorder that causes the immune system to attack the nerves, resulting in a weakness or tingling feeling which usually starts in the legs and feet. The weakness could spread rapidly and sooner or later paralyze the entire body if it goes untreated for too long. Additional symptoms include severe pain which gets worse as night falls; pins and needles or prickling sensations in the fingers, wrists, toes, and ankles; issues controlling the bowels or bladder; difficulty with facial movements especially the eye. The reason for this syndrome is not clear, however, it is quite often activated by an infection, such as a respiratory infection or stomach flu. Persons experiencing any of the symptoms should seek medical attention immediately.

Multiple Sclerosis

MS or Multiple Sclerosis is an autoimmune disorder of the central nervous system. In multiple sclerosis, the immune system fights against the myelin, which is the protective coating around the nerves. Most of the diagnoses occur in persons between the age range of twenty years and fifty years old. Multiple sclerosis could manifest through a varied range of symptoms that differ from individual to individual. Fatigue and numbness are considered the most frequently reported symptoms. Additional symptoms include difficulty walking; muscle weakness; tremors; muscle spasticity; visual disturbances; chronic and acute pain. Multiple sclerosis is a condition that stays with you throughout your life which could include stages of relapse in the symptoms followed by periods of remission, or it could be progressive. Physical therapy and medication are including In the treatments for multiple sclerosis, which could result in the legs regaining strength and a slowing of the progression of the disease.

Pinched Nerve

Sciatica is the result of a pinched nerve in the region of the lower back, it is pain which spreads out along the sciatic nerve that expands from the lower back through the hips and buttocks and down the legs. Typically sciatica impacts one side of the body. Sciatica could range from a sharp burning sensation or pain to a dull ache and could become worse with sneezing or extended periods of sitting. Leg weakness and numbness are also effects of the condition. Sciatica which is mild typically goes away with a lot of self-care measures, for example, stretching, and rest. If the pain is experienced for a period lasting longer than seven days or is severe, then contact your primary health care provider.

Peripheral Neuropathy

This is nerve damage to the body’s peripheral nervous system, which links the nerves from the central nervous system to the rest of the body. It could be as a result of infection, injury, and a variety of conditions which include hypothyroidism and diabetes. Symptoms normally begin with tingling or numbness in the feet and hands, however, it could spread to other regions of the body. Additional symptoms include pain that worsens as night falls; shooting or electric-like pain; weakness; difficulty walking; freezing or burning sensation. Treatment relies on the source of the nerve damage and might start with the treatment of an underlying condition.

Myasthenia Gravis

MG or Myasthenia Gravis is a neuromuscular disorder that results in weakness in the voluntary skeletal muscles. It could impact persons of any age; however, it is much more common in females under the age of forty and males over the age of sixty. Symptoms include sagging eyelids; trouble speaking; muscle weakness in the feet, legs, hands, and arms; double vision; difficulty swallowing or chewing. There is no cure for myasthenia gravis, however, early treatment could limit disease progression and assist in the improvement in muscle weakness.

Amyotrophic Lateral Sclerosis

ALS or Amyotrophic lateral sclerosis is also referred to as Lou Gehrig’s disease. It is a progressive neurological disease that destroys nerve cells and quite often starts with a twitching of the muscles and a weakness in the legs. Additional early symptoms include trouble swallowing; difficulty holding up your head; difficulty performing daily tasks or walking; slurred speech. Presently there is not a cure for Amyotrophic lateral sclerosis, however, available treatments could assist in controlling symptoms and complications, enhancing the quality of life.


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