Lactosuria is the appearance of lactose in the urine, the main component of lactic acid metabolism in the human body. The appearance of milk sugar in the urinary system is due to a congenital or acquired malabsorption of this substance in the intestine.
The etiology and pathogenesis of the disease have not yet been fully elucidated. It is a generally accepted fact that most patients with lactosuria are people with hereditary enzyme deficiency. An insufficient amount of lactase leads to the inability of milk enzymes to break down, which provokes further formation of lactose. A single case of the disease is most likely detected through genetic testing. The acquired form of the disease is diagnosed in a situation when the body stops producing the enzymes necessary for lactose