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Feline Lower Urinary Tract Disease: What Pet Parents Should Know


Kitten being examined at Brookeside Veterinary Hospital, Ann Arbor, MI
Kitten being examined at Brookeside Veterinary Hospital, Ann Arbor, MI

This is a topic that hits close to home for me, my own cat has experienced nearly every form of this condition. It’s been a long journey for both of us.


Feline Lower Urinary Tract Disease (FLUTD) is an umbrella term for several conditions affecting the lower urinary tract in cats. While it primarily affects males, female cats can also be affected. FLUTD is more common in middle-aged, overweight cats, but it can occur at any age.


The cause is often unknown, and many forms of FLUTD; like infections, bladder stones, and cystitis, share similar symptoms. Even with testing, a definitive cause isn’t always found, which can make treatment tricky. FLUTD can also recur without warning, especially in cats who have had it before.


Common Conditions Under FLUTD:

  • Urinary Tract Infections (UTIs): Bacterial infections that affect the bladder and urethra. These are typically treated with antibiotics.

  • Cystitis: Inflammation of the bladder wall with no known cause. Stress and environmental changes are often contributing factors.

  • Bladder Stones: Solid mineral deposits that form in the bladder. These can irritate the bladder lining or cause blockages, sometimes requiring a special diet or surgery.

  • Urethral Blockage: A potentially life-threatening condition where the urethra becomes blocked, preventing urination.

    This is a medical emergency. A blocked cat can go into kidney failure within 24–48 hours and must be seen immediately.


Signs to Watch For

Cats are naturally private in the litter box, so it’s easy to miss early warning signs. If you notice any of these, schedule a veterinary visit promptly:

  • Straining or vocalizing in the litter box

  • Frequent trips to the box with little or no urine

  • Urinating outside the box

  • Lethargy or hiding

  • Loss of appetite

  • Bloody urine

  • Vomiting (sometimes inside the litter box from straining)

  • Excessive grooming of the belly or genital area


Diagnosis & Treatment

Your veterinarian may recommend:

  • Urinalysis (to check for infection or crystals)

  • Bloodwork, X-rays, or ultrasoundThese tools help determine the cause and guide treatment, which might include antibiotics, dietary changes, hydration support, or stress management.


The Stress Connection

Studies suggest that stress plays a major role in many FLUTD cases, especially cystitis. Unfortunately, cats are excellent at hiding both stress and pain. Try to identify any environmental stressors in your home.


Common stress triggers:

  • Multi-cat household dynamics

  • Stray cats visible outside

  • Inadequate number of litter boxes

  • Changes in routine, furniture, or household members

  • Boredom or lack of enrichment


Tips for FLUTD Prevention & Support:

  • Maintain a consistent routine

  • Offer quiet, safe resting spots

  • Use pheromone diffusers or sprays

  • Keep litter boxes clean and accessible (1 per cat, plus one extra)

  • Encourage hydration with wet food and clean water

  • Feed a prescription urinary diet if recommended

  • Incorporate daily play and weight management


Urinary issues should never be ignored, especially in male cats. If you notice any signs mentioned above, don’t wait. Prompt veterinary care makes a big difference.

This is a daily concern in my household, and my cat Pippin and I hope this post has been helpful to you and your feline family.

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Brookeside Veterinary Hospital

3010 Warren Rd, Ann Arbor, MI 48105

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