What Do Orange, Pink or Red Health-Monitoring Litter Results Mean?

An orange result may suggest that urine is more acidic than the product’s reference range. Pink or red may reflect visible blood, contamination or another change that needs prompt veterinary attention. Litter color alone cannot identify the cause.

Orange versus pink or red

Color Possible interpretation Recommended response
Orange A more acidic pH trend or a lighting/reading-time difference Confirm with a fresh clump and record whether it repeats
Pink or red Possible blood or pigment contamination Contact a veterinarian, especially with urinary symptoms

Common factors that affect the result

  • Diet and hydration
  • Medication or supplements
  • Cleaning chemicals in the box
  • Colored lighting
  • Reading the clump after it has dried
  • More than one cat using the same box

When not to wait

Call a veterinarian promptly for visible blood, repeated straining, frequent unproductive trips, pain, vomiting, lethargy or appetite loss. Inability to urinate is an emergency.

Use trends, not one color

Check a new clump, use the Purrify package guide and record the result. A repeated pattern is more useful to discuss with a veterinarian than a single photograph. Review the full cat urine pH color chart.

Frequently asked questions

Does orange mean kidney disease?

No. Color-changing litter cannot identify kidney disease or any specific diagnosis.

Can dehydration affect urine?

Hydration can affect urine concentration and may change how a result looks. A veterinarian can assess hydration and urine concentration accurately.

Medical disclaimer: Purrify is an observation aid, not a diagnostic test.