How long does it take for hematuria to heal spontaneously in women with acute lower urinary tract infections is related to the specific condition of the patient and cannot be generalized. For example, if a young patient is in good health, has no underlying disease, and has a very mild condition, she can generally heal herself in about 1 week by drinking more water, urinating more often, paying attention to personal reproductive hygiene, and strengthening physical exercise to improve her resistance. However, most female patients who have blood in their urine usually cannot heal themselves and need to go to a specialist hospital in time for routine urine and ultrasound examinations, and after a clear diagnosis, anti-inflammatory and antiseptic treatment with sensitive antibiotics to achieve a cure. Therefore, once a female patient develops infectious hematuria, she must go to the urology department in a timely manner and not wait for it to heal on its own, in order to avoid the disease from acute inflammation to chronic inflammation, and may induce the whole urinary system infection from local infection, such as cystitis, pyelonephritis, or even more serious complications.