Back to Blog

🐱 Vet Guide to Blood in Cat Urine (Hematuria) 2025: Causes, Diagnosis & Care 🩺

  • 189 days ago
  • 8 min read

    In this article

🐱 Vet Guide to Blood in Cat Urine (Hematuria) 2025: Causes, Diagnosis & Care 🩺

🐱 Vet Guide to Blood in Cat Urine (Hematuria) 2025: Causes, Diagnosis & Care 🩺

By Dr. Duncan Houston, BVSc — veterinarian & Ask A Vet founder 🐾

1. 🩸 What Is Hematuria?

Hematuria refers to blood or red discoloration in your cat’s urine—it can range from pink/red visible coloring to microscopic traces detected on urinalysis :contentReference[oaicite:2]{index=2}. Any presence of blood in urine warrants veterinary attention.

2. 🔍 Common Causes

Blood in urine often indicates issues in the urinary tract:

  • Feline idiopathic cystitis (FIC/FLUTD): Bladder inflammation/stress—most frequent cause :contentReference[oaicite:3]{index=3}.
  • Urinary tract infection (UTI): Bacterial infection—more common in older cats :contentReference[oaicite:4]{index=4}.
  • Bladder stones/crystals: Irritation leading to bleeding & possible obstruction :contentReference[oaicite:5]{index=5}.
  • Trauma or bleeding disorders: From injury or clotting issues :contentReference[oaicite:6]{index=6}.
  • Urinary tumors: Bladder or kidney cancers (e.g., transitional cell carcinoma) :contentReference[oaicite:7]{index=7}.
  • Urethral obstruction: Life-threatening blockage often in males, may begin with blood and straining :contentReference[oaicite:8]{index=8}.

3. ⚠️ Signs to Watch

Look for:

  • Pink/red/brown urine or sediment :contentReference[oaicite:9]{index=9}.
  • Frequent, painful, or straining urination; small amounts :contentReference[oaicite:10]{index=10}.
  • Urinating outside the litter box, vocalizing while peeing :contentReference[oaicite:11]{index=11}.
  • Cloudy/foul-smelling urine, excessive licking of the urinary area :contentReference[oaicite:12]{index=12}.
  • More serious: pale gums, abdominal pain, lethargy, vomiting, inability to pee :contentReference[oaicite:13]{index=13}.

4. ⚡ When It’s an Emergency

Getting immediate care can be lifesaving if you notice:

  • No urine output, straining without success :contentReference[oaicite:14]{index=14}.
  • Severe discomfort, collapse, vomiting :contentReference[oaicite:15]{index=15}.
  • These signs may indicate urethral blockage or advanced cystitis, which are emergencies.

5. 🧪 Diagnostic Steps

Your vet will typically recommend:

  • Urinalysis with sediment exam and culture to detect blood, infection, crystals :contentReference[oaicite:16]{index=16}.
  • Blood tests to check kidney function, clotting, infection markers :contentReference[oaicite:17]{index=17}.
  • Imaging (X-rays, ultrasound) to locate stones, tumors, or anatomical issues :contentReference[oaicite:18]{index=18}.
  • Sometimes cystocentesis (needle-collected urine) may cause mild bleeding but improves sample accuracy :contentReference[oaicite:19]{index=19}.

6. 🩹 Treatment Options

Treatment varies by cause:

  • FIC/FLUTD: Manage stress, increase water intake, consider prescription urinary diets and pain relief :contentReference[oaicite:20]{index=20}.
  • UTI: Antibiotics for 1–2+ weeks—culture guides correct drug choice :contentReference[oaicite:21]{index=21}.
  • Stones/crystals: Dissolve struvite with diet, or surgical removal for calcium oxalate :contentReference[oaicite:22]{index=22}.
  • Obstruction: Emergency catheterization, hospitalization, fluid therapy—then long-term prevention :contentReference[oaicite:23]{index=23}.
  • Cancer: Depends on tumor type—may include surgery, chemo, radiation, NSAIDs for TCC :contentReference[oaicite:24]{index=24}.
  • Bleeding disorders/trauma: Treat the underlying cause—vitamin K, transfusions, rest :contentReference[oaicite:25]{index=25}.

7. 🛡️ Prevention & Home Care

  • Provide hydration: wet food, clean water fountains, multiple bowls :contentReference[oaicite:26]{index=26}.
  • Reduce stress: stable routines, vertical spaces, play enrichment :contentReference[oaicite:27]{index=27}.
  • Maintain urinary health: consider prescription diets where recommended :contentReference[oaicite:28]{index=28}.
  • Monitor litter box habits daily for early warning signs.
  • Attend follow-up visits & watch for recurrence.

8. 📅 Long-Term Management

Recurrent cases—especially FIC—benefit from: • Stress reduction programs, anti-anxiety strategies, environmental enrichment. • Regular urinary health monitoring, labs, and follow-ups. • Ongoing prescription diets or supplements (e.g., omega-3, GAGs).

9. 🐾 Ask A Vet Support

Need help interpreting tests, adjusting diets, or handling emergencies? Ask A Vet offers 24/7 video consults and personalized plans to manage hematuria and urinary health 📱.

Download at AskAVet.com—expert support for urinary concerns whenever you need it! 💬🩺

10. ✅ Final Takeaway

Blood in your cat’s urine is a key signal of underlying illness. Hematuria may indicate stress-related cystitis, infection, stones, obstruction, or cancer. Early detection—through vet exams, diagnostics, and supportive care—can prevent serious outcomes. With thoughtful treatment and ongoing monitoring, most cats lead full, healthy lives. Stay observant, stay proactive! ❤️

Dog Approved
Build to Last
Easy to Clean
Vet-Designed & Tested
Adventure-ready
Quality Tested & Trusted
Dog Approved
Build to Last
Easy to Clean
Vet-Designed & Tested
Adventure-ready
Quality Tested & Trusted