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Protein in Cat Urine

High protein levels in cat urine can be a sign of kidney disease and other conditions. Learn how to test for excessive protein in cat urine at home.
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Published: August 29, 2024Last Updated: August 21, 20262 min read
Protein in Cat Urine

Cats don’t always show signs of illness and pain. Even attentive pet owners can miss chronic kidney disease (CKD) and other disorders. Luckily, you can monitor your pet’s health at home with urine test strips to check for protein in cat urine.

Symptoms of Protein in Cat Urine

Diagnox Health - Symptoms of Protein in Cat Urine
Elevated protein (proteinuria) in a cat's urine can signal kidney problems or infections. Consult a vet for diagnosis and treatment.

Proteinuria in cats is characterized by abnormal proteins or elevated protein in the urine [1].

Symptoms include [2]:

Symptoms of CKD and other conditions related to high protein in cat urine include [2]:

  • Excessive thirst
  • Fatigue
  • Loss of appetite
  • Swelling of the legs
  • Fluid in the abdomen

Causes of Protein in Cat Urine

Kidney infections in cats can cause [1]:

  • CKD: This is when the kidneys gradually lose the ability to filter acids and waste products from the bloodstream. This can cause abnormal metabolism, hypertension, and an inability to produce red blood cells [3].
  • Glomerulonephritis: This is when compounds produced by the immune system get trapped in small kidney structures called glomeruli. The buildup of toxins can lead to kidney failure and other illnesses [4].
  • Acute pancreatitis: This is characterized by inflammation of the pancreas. Symptoms include abdominal pain, decreased appetite, and lethargy [5].

These conditions require medical treatment, so consult your veterinarian immediately.

Diagnox Health - Causes of Protein in Cat Urine
Gradual kidney function loss in cats, known as chronic kidney disease (CKD), can lead to increased thirst, weight loss, dehydration, vomiting, hypertension, anemia, and a decline in overall quality of life, but with proper veterinary care, its progression can be managed.

Testing for Protein in Cat Urine

Veterinarians use a cat urinalysis to test for high levels of protein. They collect the cat’s urine and assess its appearance and chemical composition [6].

Veterinarians measure the urine protein-to-creatine ratio to determine how much protein gets secreted through the urine. Excessive protein can indicate glomerular disease.

Diagnox Health - Testing for Protein in Cat Urine
Petnox-10 at-home urine dipstick that is easy to use and helps you monitor your cat's health.

Additionally, you can use urine test strips for cats at home. Petnox-10 lets you quickly check protein in your cat’s urine. The results can help you detect signs of kidney disease, UTIs, and other disorders.

Caring for a Cat With Protein in Urine

Pancreatitis may be treated with antinausea drugs [5], while glomerulonephritis may require immunosuppressive medications [4].

A cat urine test kit lets you monitor your cat’s condition between vet visits. You can keep an eye on your furry friend’s health with Petnox-10 cat urine test strips.

Diagnox Health - Caring for a Cat With Protein in Urine
References

[1] M. Lopez et al., “Is proteinuria a rare condition in apparently healthy and sick cats? A feline practice experience (2007–2018),” Open Veterinary Journal, vol. 11, no. 3, pp. 508-516. [Accessed August 2, 2023].

[2] K. Grzyb, “Excessive Protein in Cat Urine (Proteinuria in Cats),” PetMD. [Accessed August 2, 2023].

[3] Cornell Feline Health Center Staff, “Chronic Kidney Disease,” Cornell Feline Health Center. [Accessed August 2, 2023].

[4] K. Williams and E. Ward, “Glomerulonephritis in Cats,” VCA Animal Hospital. [Accessed August 2, 2023].

[5] Cornell Feline Health Center Staff, “Feline Pancreatitis,” Cornell Feline Health Center. [Accessed August 2, 2023].

[6] Cornell College of Veterinary Medicine Staff, “Urinalysis,” Cornell College of Veterinary Medicine. [Accessed August 2, 2023].

About the author
Nicole Wu

Nicole Wu

Nicole is a blog writer with experience writing about health and wellness. She is passionate about holistic health and wellbeing and learning about traditional medicine.

About the reviewer
Diagnox Staff

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Diagnox Staff

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