Eyes (diabetic retinopathy)

You are also at risk for cataracts and glaucoma.

• Damage to the retina

• Impaired vision
• Blindness, in severe cases

Kidneys (diabetic nephropathy)

• Impaired functioning of the kidneys
• Kidney failure, in severe cases

• Fatigue
• Muscle cramping
• Inability to think clearly
• Swelling from retention of body fluids
• Decreased amounts of urine (late in the disease)

Nerves (peripheral neuropathy)

• Decreased sensation, especially common in the feet and hands
• Weakness

• Numbness, tingling, burning, and weakness in the feet and hands

Autonomic nervous system (autonomic neuropathy)

• Abnormal blood pressure and heart rate
• Gastrointestinal tract disturbance
• Sexual problems

• Dizziness and drop in blood pressure when rising from a sitting to standing position
• Nausea and vomiting from failure of the stomach to contract and move food along the digestive tract
• Impotence and retrograde ejaculation (associated with painful urination after ejaculation)
• Vaginal dryness