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  1. Nitrites in Urine: Causes, Symptoms, and Treatments - Healthline

    Nov 18, 2022 · When a urinalysis comes back positive for nitrites, it usually means you have a bacterial infection. Find out why you can test negative and still have an infection, when to see a doctor, and …

  2. Nitrates and Nitrites: What Are They and What Foods Have Them?

    Nov 16, 2023 · “Nitrates and nitrites are natural chemicals that are found in soil and water as part of the earth’s nitrogen cycle,” Peart explains. “They’re naturally present in the human body and in some …

  3. Nitrites in Urine: Causes, Symptoms, and Treatment - Verywell Health

    Nov 6, 2025 · Bacteria can turn nitrates into similar compounds called nitrites, which are then excreted in urine. For this reason, healthcare providers will sometimes use urine dipstick testing for nitrites to …

  4. What to know about foods with nitrates and nitrites

    Jan 16, 2024 · Dietitian Katie Greenhill shares which foods contain nitrates and nitrites and how they affect your health.

  5. Nitrites in Urine: MedlinePlus Medical Test

    Many of these types of bacteria change a normal chemical in your urine, called nitrates, into another chemical, called nitrites. So, if you have nitrites in your urine, it usually means that you have a urinary …

  6. What Bacteria Cause Nitrites in Urine? - Biology Insights

    Dec 8, 2025 · The presence of nitrites in a urine sample is widely used as a primary diagnostic indicator for a urinary tract infection (UTI). Urine naturally contains harmless compounds called nitrates, which …

  7. Understanding Urine Nitrite Tests: Causes, Results, and Importance

    Nitrites are chemical compounds formed when certain bacteria convert nitrates, a naturally occurring substance in the body, into nitrites. This process typically occurs during bacterial infections, …

  8. Nitrites in Urine: Overview, Symptoms, and Treatments | Diagnosis Pad

    Oct 18, 2025 · What do nitrites indicate? The presence of nitrites in urine typically indicates a bacterial infection in the urinary tract. Nitrites are produced when bacteria, such as Escherichia coli (E. coli), …

  9. Nitrite-Positive Urine: Causes & Treatments - Cleveland Clinic

    Bacteria in the urinary tract turn nitrates into nitrites, creating nitrite-positive urine. Nitrites in urine (nitrituria) only occur when you have a urinary tract infection (UTI).

  10. What is Nitrite? A Comprehensive Guide

    Dec 27, 2024 · While nitrites naturally exist in the environment, they can have significant implications for human health and environmental balance. This article explores what nitrites are, their sources, …