Neurological diseases >>>> Numbness of the extremities is paresthesia
Numbness of the extremities is paresthesia.
Loss of sensitivity in the extremities is not a rare phenomenon, only those numbness of the limbs in which restoring sensitivity is a problem and long-term treatment are dangerous.
Numbness of the extremities is reversible (transient) and permanent.
Temporary numbness of the extremities does not last long and disappears as the factor that caused the loss of sensitivity is eliminated. For example, a extremity has been served - a leg or arm has become numb. This is due to the pinching of the blood vessels higher up the extremity. They held their hand up for a long time - the hand was numb, sensitivity was lost due to the outflow of blood from the capillaries.
More difficult cases of loss of sensitivity associated with compression of the nerves. In such cases, numbness of the extremity may persist until the nerve ending is released from compression. Cases of this kind can occur with unsuccessful turns in the lumbar spine or in the cervical spine. For example, the lower the area of paresthesia - numbness is located on the legs, the closer to the lumbar spine is the nerve that caused such numbness.
Very often, numbness of the skin in various parts of the body is the result of a violation of the blood supply to the brain.
The causes of all cases of impaired limb sensitivity can be divided into several groups:
- circulatory disorders,
- disorders of nerve conduction,
- violations of the vascular wall.
Signs of paresthesia:
- loss of sensitivity of the skin (there is a superficial sensation of numbness of only an area of the skin without loss of sensitivity in the deep layers of tissues),
- numbness of part or all of the extremity (the limb becomes like a wax),
- tingling in the skin,
- convulsive syndrome sometimes accompanies loss of sensitivity.
The main diseases that cause a possible loss of extremity sensitivity: osteochondrosis of various parts of the spine, Raynaud syndrome, diabetes mellitus, cerebrovascular accident, multiple sclerosis, obliterating endarteritis.
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