Symptoms of nerve damage may include:

• numbness, tingling, or pain in the toes, feet, legs, hands, arms, and fingers
• wasting of the muscles of the feet or hands
• indigestion, nausea, or vomiting
• diarrhea or constipation
• dizziness or faintness due to a drop in blood pressure after standing or sitting up
• problems with urination
• erectile dysfunction in men or vaginal dryness in women
• weakness

Diabetic neuropathy is
classified according to which part of the body it affects and how it affects
it:

·        
Peripheral
neuropathy: this is the most common type of diabetic neuropathy. It induces
pain or loss of sensation in the toes, feet, legs, hands, and arms.

·        
Autonomic
neuropathy: leads to trouble in digestion, bowel and bladder function, sexual
response, and perspiration. It can also affect the nerves that control heart
rate blood pressure, as well as nerves in the lungs and eyes. Autonomic
neuropathy can also result in hypoglycemia unawareness, a condition in which
people no longer experience the warning symptoms of low blood glucose levels.

·        
Proximal
neuropathy: the patient experiences pain in the thighs, hips, or buttocks with
consequent weakness in the legs.

·        
Focal
neuropathy: the hallmark is a sudden weakness of one nerve or a group of
nerves, causing muscle weakness or pain. Any nerve in the body can be affected.