Types of Neuropathy There are hundreds of types of neuropathy, each with its own set of symptoms and treatments. Specific types may be classified by the area of the body affected, or by their causes, e.g. genetics, diabetes or nutritional deficiency. However, all forms of neuropathy can be placed into general categories according to the pattern in which they affect the nerves: peripheral, autonomic and focal.

Peripheral Neuropathy Autonomic Neuropathy Focal Neuropathy

Focal Neuropathy

When neuropathy strikes only an isolated area, damaging a single nerve or group of nerves, this is called focal neuropathy. It may manifest in the legs, feet, wrists, eyes, facial muscles, chest, abdomen or pelvis. It often comes on suddenly and unpredictably, and though it can be very painful, it tends to clear up on its own after a period of weeks. Focal neuropathy is less common than generalized, or diffuse, neuropathy, and occurs mostly in diabetic patients. Compression or trauma can also cause focal neuropathy. For example, Carpel tunnel syndrome is caused by compression of a major nerve in the forearm, producing sensations of tingling and numbness in the wrist and hand. Anyone who has had one of their limbs "go to sleep" has experienced a temporary focal neuropathy due to compression.