Seeing blood in the urine is frightening, and that fear is useful: it makes people seek help early. The most important message of this article is simple. Even a single episode of blood in the urine deserves a proper urological evaluation, even if it never happens again and even if there is no pain.
Common causes
- Urinary infection (UTI): usually with burning, frequency and sometimes fever
- Stones in the kidney, ureter or bladder: usually with pain in the side or lower abdomen
- Prostate enlargement in older men
- Injury after a fall or accident
- Vigorous exercise, or menstrual contamination in women (not true hematuria)
- Less commonly, tumours of the bladder, kidney or prostate, and this is the cause we must never miss
The red flag: painless, visible blood in the urine in anyone above 40, especially smokers, is bladder or kidney cancer until proven otherwise. Painless bleeding that stops by itself is the most commonly ignored warning sign, precisely because it stops. Do not wait for a second episode.
What will the urologist do?
Evaluation is straightforward and mostly painless:
- Urine tests: routine examination, culture, and urine cytology where indicated
- Ultrasound of the kidneys, ureters and bladder, often the first imaging step
- CT scan (CT urography) when a stone or growth needs to be confirmed or excluded
- Cystoscopy: a thin telescope examination of the bladder through the natural passage, done with local anesthesia; the definitive way to inspect the bladder lining
If the cause is an infection or a stone, treatment is usually simple and curative. If a tumour is found, finding it at this early, bleeding-but-small stage is exactly what makes cure rates high. Bladder tumours detected early can often be removed endoscopically (TURBT) without any external cut.
What you should not do
- Do not assume it is "just heat" or "just less water", common beliefs that delay diagnosis
- Do not self-medicate with antibiotics from the chemist; if it is an infection, it needs the right antibiotic and confirmation that bleeding stops after treatment
- Do not skip evaluation because the bleeding stopped, the cause is still there
Dr. Vijay Bora, MBBS, MS (Gold Medalist), MCh Urology (IMS-BHU), is a senior urologist in Agra with 28+ years of experience, and heads the Department of Urology at Pushpanjali Hospital & Research Centre. Full profile →
This article is for general education only and is not medical advice. Treatment decisions require clinical examination and investigations. In an emergency, visit the nearest hospital immediately.