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Diabetes mellitus is a metabolic disorder characterised by hyperglycemia (high blood sugar) resulting from low levels of the hormone insulin or resistance to insulin's effects. The characteristic symptoms of diabetes are polyuria (excessive urine production), polydipsia (thirst and increased fluid intake) and blurred vision; these symptoms may be absent if the blood sugar is only mildly elevated.

Diabetes can cause many complications. Acute complications such as hypoglycemia, ketoacidosis or nonketotic hyperosmolar coma may occur if the disease is not adequately controlled. Serious long-term complications associated with diabetes include cardiovascular disease, chronic renal failure, retinal damage (which can lead to blindness), nerve damage and microvascular damage which may cause erectile dysfunction (impotence) and poor healing. Poor healing of wounds, particularly of the feet, can lead to gangrene, which may require amputation. 

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Diabetes articles and treatments

Articles and features

If you want to read more about diabetes you may be interested in our related articles and features.  These are written by a number of leading medical professionals and healthcare writers.

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Featured providers of diabetes treatment

The following diabetes treatment clinics and hospitals provide information about their services on the DoctorInternet site.

Featured diabetes treatment clinics

  • London Medical London Medical: Private medical services in LondonLondon Medical started as a Diabetes Clinic over 20 years ago. The team of Diabetes Consultants, supported by a Dietician and specialist Nurse, are highly experienced in the support and management of...
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