Information about a laboratory test
Low pH means more acidic urine; diet, medicines and metabolic factors can influence it.
The Urine pH test assesses how acidic or alkaline urine is.
It is used to assess urine acid-base characteristics and provide context in some stone or infection evaluations.
Low pH means more acidic urine; diet, medicines and metabolic factors can influence it.
High pH means more alkaline urine; diet, specimen delay, some bacteria and medicines can influence it.
Start with the performing laboratory's reference interval, method, collection conditions and reporting unit. Urinalysis findings do not establish a diagnosis on their own.
>= 4.6 – <= 8 pH
Sourced reference context for Urine pH
This is sourced example reference/clinical-context information; the user's own laboratory report and specimen conditions take priority.
Reference ranges may vary by laboratory, method used, age, sex, pregnancy status, and clinical context. The reference range on your own laboratory report takes precedence.
Start with the performing laboratory's reference interval, method, collection conditions and reporting unit. Urinalysis findings do not establish a diagnosis on their own. Interpretation may be more informative when related urine parameters are considered together.
Urinalysis — U.S. National Library of Medicine (MedlinePlus)
Government medical reference · 2025 · Urinalysis components, routine use and qualitative normal findings · Verified: Aug 12, 2026
Urine pH test — U.S. National Library of Medicine (MedlinePlus)
Government medical reference · 2025 · Urine pH purpose and example reference interval · Verified: Aug 12, 2026
Crystals in Urine — U.S. National Library of Medicine (MedlinePlus)
Government medical reference · 2024 · Urine crystals, stone context and qualitative normal findings · Verified: Aug 12, 2026
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