Paralysis refers to the loss of muscle function and is generally accompanied by a sensory loss in the affected area. It’s generally caused by damage to the central nervous system especially the spinal cord. Reason includes stroke, trauma, nerve damage, polio, multiple sclerosis, etc. Paralysis can occur either partially or fully. Lower half paralysis is called paraplegia and paralysis of both arms and legs is called quadriplegia. It happens because the brain can’t send messages to the different parts of the body for various reasons. If the nerve fibers are damaged the paralysis is generally irreversible.
Paralysis happens because of improper muscle function, which usually results in a sensory loss in the part of the body that is affected. Paralysis is mostly a result of damage to the spinal cord; that affects the central nervous system of the body.
Paralysis is the whole muscle function loss in the affected area, thus it should not be mistaken for muscle weakness or numbness. Paralysis may be accompanied by other symptoms like- fainting spells, confusion, headaches, drooling and behavioral changes, problems with speaking or writing, nausea or vision loss. If any of the above symptoms accompanied with muscle numbness is felt, a doctor should be immediately consulted.