Blood in Urine
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Kenji Taylor, MD, MSc

Kenji Taylor, MD, MSc (Family Medicine, Primary Care Physician)

Dr. Taylor is a Japanese-African American physician who grew up and was educated in the United States but spent a considerable amount of time in Japan as a college student, working professional and now father of three. After graduating from Brown, he worked in finance first before attending medical school at Penn. He then completed a fellowship with the Centers for Disease Control before going on to specialize in Family and Community Medicine at the University of California, San Francisco (UCSF) where he was also a chief resident. After a faculty position at Stanford, he moved with his family to Japan where he continues to see families on a military base outside of Tokyo, teach Japanese residents and serve remotely as a medical director for Roots Community Health Center. He also enjoys editing and writing podcast summaries for Hippo Education.

Nao Saito, MD

Nao Saito, MD (Urology)

After graduating from Tokyo Women's Medical University School of Medicine, Dr. Saito worked at Tokyo Women's Medical University Hospital, Toda Chuo General Hospital, Tokyo Women's Medical University Yachiyo Medical Center, and Ako Chuo Hospital before becoming Deputy Director (current position) at Takasaki Tower Clinic Department of Ophthalmology and Urology in April 2020.

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  • Red-brown urine came out

  • Blood is mixed in pee

  • Urine is red-brown

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Content updated on Dec 6, 2023

About the symptom

Bloody urine (hematuria) describes frank blood or visible blood in the urine. The urine may appear bright red or brownish.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Bloody or red urine

Possible causes

  • Bladder cancer / Ureteric cancer / Renal pelvis cancer

    Cancer of the walls of the urinary system. Risk factors include smoking, age, and exposure to certain chemicals. in addition people over 55, people who have been treated for cancer in the past with certain chemotherapies or radiation to the area are also at higher risk. Symptoms depends on location of the tumor but blood in the urine -- whether seen by the naked eye or seen under the microscope -- is the most common symptom. Painful or frequent urination or flank pain can also be warning signs.

  • Alport syndrome

    A rare genetic disorder characterized by progressive kidney disease and abnormalities of the inner ear and the eye. It usually presents as blood in the urine, high blood pressure and swelling (edema).

  • Immune thrombocytopenic purpura

    Immune thrombocytopenic purpura (ITP) happens when the immune system mistakenly attacks and destroys platelets, which are blood cells that help with clotting. ITP can cause low platelet levels, leading to easy bruising and bleeding. Triggers include infections like HIV and hepatitis.

  • Renal cell carcinoma
  • IgA Vasculitis (Henoch-Schonlein Purpura)
  • Paroxysmal nocturnal hemoglobinuria
  • Chronic pyelonephritis
  • Vasculitis syndrome (including cryoglobulinemia)

Related serious diseases

  • Acute glomerulonephritis

    A type of kidney inflammation that causes an abnormal loss of blood or protein in the urine. It can be caused by infection (bacterial or viral) or other illnesses like lupus, Goodpasture's syndrome, Wegener's disease, and polyarteritis nodosa.

  • Malaria

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Have you ever had red or brown urine?

  • Do you have a fever?

  • Do you experience back pain?

  • Do you have pain when urinating?

  • Do you have a stomach ache?

Other Related Symptoms

Similar symptoms or complaints

References

  • Saleem MO, Hamawy K. Hematuria. 2022 Aug 8. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan–. PMID: 30480952.

    https://pubmed.ncbi.nlm.nih.gov/30480952/#:~:text=Hematuria%20is%20defined%20as%20the,by%20the%20primary%20care%20provider.

Reviewed By:

Kenji Taylor, MD, MSc

Kenji Taylor, MD, MSc (Family Medicine, Primary Care Physician)

Dr. Taylor is a Japanese-African American physician who grew up and was educated in the United States but spent a considerable amount of time in Japan as a college student, working professional and now father of three. After graduating from Brown, he worked in finance first before attending medical school at Penn. He then completed a fellowship with the Centers for Disease Control before going on to specialize in Family and Community Medicine at the University of California, San Francisco (UCSF) where he was also a chief resident. After a faculty position at Stanford, he moved with his family to Japan where he continues to see families on a military base outside of Tokyo, teach Japanese residents and serve remotely as a medical director for Roots Community Health Center. He also enjoys editing and writing podcast summaries for Hippo Education.

Nao Saito, MD

Nao Saito, MD (Urology)

After graduating from Tokyo Women's Medical University School of Medicine, Dr. Saito worked at Tokyo Women's Medical University Hospital, Toda Chuo General Hospital, Tokyo Women's Medical University Yachiyo Medical Center, and Ako Chuo Hospital before becoming Deputy Director (current position) at Takasaki Tower Clinic Department of Ophthalmology and Urology in April 2020.

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