What is diabetic neuropathy?

Diabetic neuropathy represents the damage of the nerves.
Diabetic neuropathy occurs oftenly in patients with diabetes. Over time, Hyperglycemia
may affect the nerves in the body. There are several types of diabetic
neuropathy.

Peripheral
neuropathy occurs when the peripheral nervous system is damaged. The pain
sensitivity, also tactile and thermal sensitivity are decreased. Peripheral neuropathy
can sometimes affect the ability of the movement and the strength of the
muscles. Peripheral neuropathy affects the feet (foot and legs) and may contribute to
the emergence of serious problems such as ulcers, infections or deformities of bones and
joints. Peripheral neuropathy is the most common form of diabetic
neuropathy.   

Autonomic
neuropathy occurs when the autonomic nervous system is damaged. These
nerves are involved in the control of involuntary functions of human body, such as
heartbeat, blood pressure, perspiration, digestion, kidney function and some aspects of
sexual function. Autonomic neuropathy is a common form of diabetic
neuropathy.

Focal neuropathy
affects a single nerve, most commonly the nerve located in the wrist, thigh or leg.
Also, it may affect nerves of the chest and the nerves that control the eye muscles.
Focal neuropathy usually appears suddenly and it is the rarest form of diabetic
neuropathy.