What are the pathological types of peripheral nerve injury?
May 12, 2023
Source: Cainiu Health
Dr. Yang Jun
Introduction
The pathological types of peripheral nerve damage generally include Wallerian degeneration, segmental demyelination, and neuronal degeneration. In addition to these relatively common pathological types, there are other types such as axonal degeneration. In daily life, one should avoid excessive fatigue and ensure adequate rest. If any symptoms occur, prompt medical evaluation and timely treatment are recommended.
Pathological types of peripheral nerve damage generally include Wallerian degeneration, segmental demyelination, and neuronal degeneration.
1. Wallerian Degeneration
Wallerian degeneration refers to a series of changes—including degeneration, disintegration, and absorption—that occur in the distal residual axons or fibers following necrosis or injury of a peripheral nerve, ultimately leading to separation between the cell body and the axon.
2. Segmental Demyelination
Segmental demyelination typically refers to localized loss of myelin sheath in peripheral nerve fibers while the axon remains largely intact. Patients may experience motor dysfunction, sensory disturbances, and autonomic nervous system dysfunction.
3. Neuronal Degeneration
Neuronal degeneration refers to the degeneration and necrosis of neuronal cell bodies in the peripheral nerves, accompanied by rapid degeneration and disintegration of axons.
In addition to these relatively common pathological types, other types such as axonal degeneration may also occur. In daily life, it is important to avoid excessive fatigue and ensure adequate rest. If any symptoms arise, prompt medical evaluation and timely treatment are essential to prevent disease progression.
