Autonomic neuropathy

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Symptoms

By Mayo Clinic staff

Signs and symptoms of autonomic neuropathy vary widely, depending on which parts of your autonomic nervous system are affected. They may include:

  • Dizziness and fainting upon standing (orthostatic hypotension), caused by a drop in blood pressure
  • Urinary problems, including difficulty starting urination, overflow incontinence and inability to empty your bladder completely, which can lead to urinary tract infections
  • Sexual difficulties, including erectile dysfunction or ejaculation problems in men, and vaginal dryness and difficulties with arousal and orgasm in women
  • Difficulty digesting food (gastroparesis), which can cause a feeling of fullness after eating little, loss of appetite, diarrhea, constipation, abdominal bloating, nausea, vomiting and heartburn
  • Sweating abnormalities, especially decreased sweating, so the body can't regulate its temperature; also excessive sweating, sometimes after eating
  • Sluggish pupil reaction, making it difficult to adjust from light to dark and causing difficulties with driving at night
  • Exercise intolerance, when your heart rate remains unchanged instead of increasing and decreasing in response to your activity level
  • Lack of usual warning signs of low blood sugar (hypoglycemia), which include shakiness, increased heart rate, sweating and palpitations

DS00544

April 15, 2008

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