Diabetes Basics

All That You Wanted To Know About Glycosuria


Glycorsuria, in simple words, refers to the presence of glucose in the urine. It is also known as Benign glycosuria, Familia renal glycosuria, Diabetes renalis and Renal diabetes. The presence of this condition is used along with several other tests to detect the presence of diabetes in an individual. However, glycosuria need not always indicate the presence of diabetes. This condition could occur in non-diabetics as well.

Generally, glycosuria is bifurcated into three different categories. These are:

* Type A - This type of glycosuria is characterized by reduction in the threshold as well as the rate of re-absorption of glucose. This leads to increased sugar levels.
* Type B - In this type of glycosuria only the renal threshold reduces but the re-absorption rate remains the same.
* Type O - This type of glycosuria is caused due to the inability of kidneys to reabsorb glucose.

What are the causes of glycosuria?
Glycosuria is caused when the sugar levels rise above the renal threshold. There could be several factors responsible for this. Some factors that can raise your blood sugar levels beyond threshold are Cushing's syndrome, Rapid gastric emptying, peptic ulcers and Acromegaly. Some other secondary causes that could contribute to the development of glycosuria are pregnancy, Wilson's disease, Intestinal glucose-galactose malabsorption and cystinosis.

How is glycosuria caused?
When a person is suffering from glycosuria, the kidneys absorb and reabsorb the sugar present in the blood stream till the time it reaches the renal threshold. The renal threshold can be described as the saturation point of concentration level of sugar. The kidneys cannot absorb more sugar once it has reached the renal threshold level. Ideally, the renal threshold of kidney is 100mmol/L. Once the level of sugar exceeds this sugar level, the excessive sugar is excreted through the urine. This is known as glycosuria.

It can affect both diabetics and non diabetics
Glycosuria is a condition that can affect both- diabetics and non diabetics alike. People who are not suffering from diabetes may deal with glycosuria on a short term basis. This could be a result of various conditions like stress, hyperthyroidism, meningitis, pain and viral infections like meningitis.

In some cases, glycosuria may also be a result of insufficient amount of insulin present in the body. Consuming a large quantity of sugar rich food could also lead to this condition. However, in non diabetics glycosuria does not need any specific treatment. The problem wanes away as and when the underlying factors are resolved.

Though glycosuria can affect both- diabetics as well as non diabetics, the condition is more common amidst those suffering from diabetes. Diabetic patients who are able to sustain normal blood sugar levels may also deal with the problem.