The carpal tunnel syndrome is the most common entrapment syndrome of the upper 
limb. Compression of the median nerve is most often idiopathic and typically 
occurs in women aged 50. The diagnosis is clinical and must look for signs of 
gravity (hypoesthesia, thenar atrophy). The electromyogram is not required but 
recommended for surgical indication, It assesses the severity of the disease and 
identifies other injury. Conservative treatment is available in the beginner to 
moderate forms. In case of failure of this treatment or with severe objective 
signs, treatment is surgical. The ulnar nerve at the elbow comes in the second 
position of the upper limb entrapment syndromes. Clinical examination looks for 
signs of serious problems with objectives symptoms. Treatment is usually 
surgical.