Many conditions, including injuries, metabolic diseases, neuromuscular diseases and toxins in the body, can cause pain and weakness in the arms, according to MedicineNet. Weakness describes a lack of strength or loss of ... More »

Common causes of muscle weakness in the legs include sciatica and stroke, according to Healthgrades. Lack of leg strength is also characteristic of diseases like multiple sclerosis and myasthenia gravis. More » Health Conditions & Diseases

A possible cause of sudden muscle weakness in one or both legs is stroke, which is a potentially fatal condition that reduces oxygen supply to the brain, states Healthgrades. Other potential causes of leg weakness includ... More »

Symptoms of shoulder impingement syndrome include shoulder weakness, pain when extending the arms upward and difficulty reaching behind the back, states Cleveland Clinic. If the rotator cuff tears completely, the arm may... More » Health Conditions & Diseases

Symptoms of nerve damage to the shoulder and upper arms may include pain, weakness, paresthesias, or a tingling or prickling, pins-and-needles sensation when there are no known injuries to the affected area, according to... More »

Benefits of coflex back surgery include the relief of the pain of spinal stenosis, characterized by pain in the neck or back; cramps, weakness and numb sensations in the arms or legs; shooting pains in the legs; and trou... More » Health Conditions & Diseases

Symptoms of cervical spinal stenosis may include stiffness, numbness, pain or weakness affecting the neck, shoulders, arms, legs or hands, as stated by WebMD. Additional symptoms may include clumsiness of the hands, coor... More »