For example, it controls digestion, respiration, the contractions of the heart and of smooth muscles in blood vessels, and the release, by the endocrine system, of hormones which regulate metabolism and growth. Hormones themselves can influence behaviour by their effects on specific parts of the brain.
Hematuria is also common in older men due to the use of certain medications or prostate enlargement. Blood in urine may occur due to infection, inflammation, or injury to the urinary system. Small amounts of blood are typically associated with kidney damage, while lower urinary tract conditions lead to gross hematuria. Kidney and ureter stones commonly cause hematuria in individuals younger than 40 years of age.
According to the Kidney Cancer Association, hematuria is the most common sign of kidney cancer. If you have blood in your urine, you may see pink, brownish, or even a red discoloration. Often even a small amount of blood can cause a color change. But, sometimes there is such a miniscule amount of blood that only a lab can detect blood during a urinalysis. Other causes of blood in the urine are bladder infection, kidney stone, cysts, or inflammation. If you see blood in your urine, it may be time to see your doctor.