No—color-changing cat litter cannot diagnose a urinary tract infection. It may show a pH change that encourages closer observation, but a UTI diagnosis requires veterinary evaluation and often urinalysis and urine culture.
Why pH alone is not a UTI test
Urine pH is influenced by diet, hydration, medication, time and health. Some urinary infections may affect pH, but a high or low result is not specific to infection. A cat can also have urinary symptoms without a bacterial UTI.
Signs associated with urinary problems
- Frequent trips to the litter box
- Straining or crying
- Small amounts of urine
- Blood in urine
- Excessive licking of the genital area
- Urinating outside the box
- Hiding, vomiting or appetite loss
What a veterinarian may check
A veterinarian may perform a physical examination, urinalysis, urine culture, blood testing or imaging. These tests help distinguish infection from inflammation, crystals, stones, blockage and other causes.
How to use Purrify responsibly
- Compare a fresh clump with the package chart.
- Record repeated results and symptoms.
- Share photographs and notes with your veterinarian.
- Do not delay care because a litter result looks normal.
Review what a blue result may mean and the complete pH color chart.
Emergency warning
A cat that strains but cannot pass urine needs emergency veterinary care. Male cats are especially vulnerable to life-threatening urinary blockage.
Medical disclaimer: Purrify provides observation information and does not diagnose or treat a UTI.