According to WebMD: Nitrites. Bacteria that cause a urinary tract infection (UTI) make an enzyme that changes urinary nitrates to nitrites. Nitrites in urine show a UTI is present.
Dehydration
Insulin affects the concentration of glucose in the urine.
The most usual cause of blood in the urine is a kidney stone.
The chemicals in the urine
Matt dobbins
Aids
Any number of causes. Food and the start of a period.
insulin
alchohol
pyridium
it leads to stones in kidneys?
Water, and high sugars!