Renal glycosuria

Renal glycosuria
Renal glycosuria
Classification and external resources

ICD-10 E74.8
ICD-9 271.4
OMIM 233100
DiseasesDB 29130
eMedicine ped/1991
MeSH D006030

Renal glycosuria, also known as renal glucosuria, is a rare condition in which the simple sugar glucose is excreted in the urine[1] despite normal or low blood glucose levels. With normal kidney (renal) function, glucose is excreted in the urine only when there are abnormally elevated levels of glucose in the blood. However, in those with renal glycosuria, glucose is abnormally elevated in the urine due to improper functioning of the renal tubules, which are primary components of nephrons, the filtering units of the kidneys.



A doctor normally can diagnose renal glycosuria when a routine urine test, a Urinalysis, detects glucose in the urine, while a blood test indicates that the blood glucose level is normal.


In most affected individuals, the condition causes no apparent symptoms (asymptomatic) or serious effects. When renal glycosuria occurs as an isolated finding with otherwise normal kidney function, the condition is thought to be inherited as an autosomal recessive trait[citation needed].


It is associated with SLC5A2, coding the sodium glucose cotransporter 2.


  • Benign glycosuria
  • Familial renal glycosuria
  • Nondiabetic glycosuria
  • Primary renal glycosuria
  • Diabetes renalis
  • Renal diabetes
  • Diabetes innocence

See also


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  • glycosuria — 1. SYN: glucosuria. 2. Urinary excretion of carbohydrates. SYN: glycuresis (2). [glyco + G. ouron, urine] alimentary g. g. developing after the ingestion of a moderate amount of sugar or starch …   Medical dictionary

  • renal threshold for glucose — the point of glucose concentration in the blood (180 mg per dL is normal) at which the kidney will excrete glucose (see glycosuria). Called also transport maximum for glucose …   Medical dictionary

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