Which term describes the presence of blood in urine?

The term that describes the presence of blood in urine is hematuria. This condition can result from various causes, including urinary tract infections, kidney stones, or injury to the urinary system. Hematuria can be classified as either gross, where the blood is visible to the naked eye, or microscopic, where the blood can only be detected with a microscope.

In contrast, cystitis refers to inflammation of the bladder, often caused by infection, and may or may not involve blood in the urine but is not specifically defined by it. Pyuria indicates the presence of pus in the urine, typically signifying an infection, and nephrolithiasis refers to kidney stones, which can cause hematuria as a symptom but do not define it. Thus, hematuria is the precise term used in medical terminology when identifying blood in urine.