What Causes Occult Blood in Urine for Chronic Kidney Disease

What causes occult blood in urine for chronic kidney disease? "Occult blood" simply means "hidden" blood; blood that is not visible, but is still present. Normally there is no blood in the urine. Blood can indicate an infection, kidney stones, trauma, or bleeding from a bladder or kidney tumor.
When the red blood cells are damaged, the heme in it will release, so we can test it by coupon or test paper. We can express the degree of occult blood by occult 1+, occult 2+, 3+, etc just as protein 1+ and protein 2+, etc.
Occult blood, the same as hematuria, is a sign which indicates the damage of kidney and we can not ignore. Once we find it out, we should monitor it and have examination on both blood and urine such as protein, red blood cell, creatinine, blood urea nitrogen and urea acid, etc. If proteinuria and hematuria last for 3 months, it can be diagnosed with kidney disorder or kidney disease. As for the treatment, Chinese Medicine is recommended, which is abstracted from natural herbs and can repair the damaged cells for it contains active materials and can treat occult blood from root.