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A 45-year-old member asked:

why do diabetics get glycosuria?

2 doctor answers4 doctors weighed in
Dr. Emily Lu
Dr. Emily Lu answered
Family Medicine 7 years experience
Renal Overload: Glycosuria (or glucose in the urine) is caused by the kidneys(proximal renal tubules) being unable to reabsorb all the filtered glucose. Diabetes due to either Insulin resistance or lack of Insulin results in underutilization of glucose by your cells and hyperglycemia. Glycosuria usually occurs when blood glucose level exceeds 180 mg/dl.
Dr. Stanley Schwartz
Endocrinology 52 years experience
Kidney normally ...: Reabsorbs blood sugar filtered by kidney but when sugar over ~220, blood sugar 'leaks out ' into urine- recognized as 'glycosuria'.

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Similar questions

A 41-year-old member asked:

How are renal glycosuria and diabetes different?

3 doctor answers7 doctors weighed in
Dr. Ray Holt
Dr. Ray Holt answered
Family Medicine 28 years experience
2 different things: For reasons we don't understand, sometimes the kidneys may allow some glucose to slip out into the urine even when the blood level of glucose is normal. This can be detected by a urine dipstick test. In diabetes, the blood level of glucose will be high. In some diabetics, the blood glucose gets so high that the sugar spills over into the urine also.
A 33-year-old member asked:

What is the difference between diabetes and glycosuria?

5 doctor answers13 doctors weighed in
Dr. Emily Lu
Dr. Emily Lu answered
Family Medicine 7 years experience
Disease vs. symptom: Diabetes is a metabolic disease caused by not producing enough Insulin or developing Insulin resistance. Glycosuria means the presence of glucose in the urine, which occurs either when the glucose levels in the blood are too high (as in diabetes) or when glucose transport mechanism in kidney tubules is congenitally defective(rare condition).
A 37-year-old member asked:

What causes glucosuria aside from diabetes?

1 doctor answer1 doctor weighed in
Dr. Ron Jones
Dr. Ron Jones answered
Family Medicine 45 years experience
Genes: A harmless condition (idiopathic glycosuria) in which the glucose spills over into the urine at a lower threshold than normal. The avg for glycosuria is a blood sugar of around 160, but this is not true if you have idiopathic glycosuria.

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Last updated Jun 25, 2014
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