Glucosuria

Glucosuria or glycosuria refers to the excretion of glucose into the urine. Ordinarily, urine contains no glucose because the kidneys are able to reabsorb all of the filtered glucose from the tubular fluid back into the bloodstream. Glucosuria is a common sign of diabetes mellitus.

Causes

Glucosuria is caused by:

• Diabetes mellitus: This is the most common cause of glucosuria. High blood glucose levels in people with poorly controlled diabetes can exceed the capacity of the kidneys to reabsorb glucose, leading to its excretion in the urine.
• Renal glycosuria: This is a rare condition in which glucose is excreted in the urine, even though blood glucose levels are normal. This is due to a defect in the tubules of the kidneys.
• Pregnancy: Some women may have glucosuria during pregnancy. This is due to the increased demand on the kidneys to filter and reabsorb glucose.

Symptoms

The symptoms of glucosuria can include:

• Frequent urination
• Increased thirst
• Fatigue
• Unexplained weight loss
• Blurred vision

Diagnosis

Glucosuria is usually diagnosed by a urine test. If glucosuria is detected, further tests may be needed to determine the underlying cause.

Treatment

The treatment for glucosuria depends on the underlying cause. In cases of diabetes, treatment may include diet, exercise, and medication to control blood glucose levels. In cases of renal glycosuria, no treatment may be needed.

See also

• Diabetes mellitus
• Renal glycosuria
• Urine test

Glucosuria Resources
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