What does it mean to have blood in urine and what could be the possible causes for this symptom?

Having blood in urine, also known as hematuria, means there is blood present in the urine. Possible causes for this symptom include urinary tract infections, kidney stones, bladder or kidney infections, trauma to the urinary tract, or more serious conditions like kidney disease or cancer. It is important to consult a healthcare provider for proper diagnosis and treatment.