Why Is My Cat Peeing Blood

This page is educational reference material for preparing questions. A licensed veterinarian examines the animal, makes the diagnosis, and sets the treatment.

Blood in cat urine: UTI, bladder stones, feline idiopathic cystitis, and cancer. This always requires veterinary attention.

Understanding This Symptom

The earliest cue in feline illness is usually behavioural, not physical. Owners who notice small changes in grooming, eating, or hiding are the ones who catch things in time. This guide focuses on the most common causes, warning signs that indicate an emergency, and what you can expect at the veterinarian.

Common Causes

Less Serious Causes

More Serious Causes

• Poisoning or toxic exposure

What to Watch For

• Lethargy or reluctance to move or play
• Vomiting, diarrhea, or changes in stool

Home Care and First Steps

Veterinary Diagnosis

Your veterinarian will typically:

• Perform a thorough physical examination

Treatment Options

Prevention

Long-Term Management

When to Get a Second Opinion

Related Symptom Guides

• Why Is My Cat Not Eating?
• Why Is My Cat Vomiting?
• Why Is My Cat Hiding?
• Why Is My Cat Sneezing?
• Why Is My Cat Losing Weight?

Common Questions About Why Is My Cat Peeing Blood

Should I go to the emergency vet?

Blood in the urine, and especially a male cat that visits the box often and produces little or nothing, is an emergency. A blockage kills within a day or two. A female cat with pink urine should still be seen the same day.

How much will treatment cost?

The visit checks the bladder size and the urine. A blocked male needs catheterization, fluids, and hospitalization, which is a different estimate from an office visit for cystitis. Ask the emergency clinic which situation they are quoting.

Can I treat this at home?

Note how often the cat enters the box and whether any urine appears. Do not wait to see if a straining male improves by morning. Collect a sample only if the cat is passing urine freely and you are already on the way.