External pressure reduces flow in the vessels supplying the nerve with blood (the vasa nervorum). This causes local ischaemia, which has an immediate effect on the ability of the nerve axons to transmit action potentials. As the<unk>  becomes more severe over time, focal demyelination occurs, followed by axonal damage and finally scarring.
Nerve compression syndrome
Calpainopathy
Complex regional pain syndrome
Radiation-induced lumbar plexopathy
Median nerve palsy
Pudendal nerve entrapment
Central pain syndrome
Accessory nerve disorder