Chronic inflammatory demyelinating polyneuropathy (CIDP) is a neurological disorder that results in slowly progressive weakness and loss of feeling in the legs and arms. It is caused by the body’s immune system inappropriately reacting against and damaging myelin. Myelin surrounds the peripheral nerves and acts like an insulator so that the nerves can conduct impulses properly. It is closely related to Guillain-Barré syndrome (GBS). However, GBS develops acutely (over hours-days) whereas CIDP usually develops slowing (over weeks-months).
CIDP can occur at any age and in both sexes, but is more common in men than women.
Symptoms include tingling, numbness or altered feeling which often begins in the feet and hands, weakness of the arms and legs, fatigue and aching pain in the muscles.
Source - www.brainfoundation.org.au