Cat Urinary Blockage: Emergency Signs & Action
Why This Is an Emergency
Urethral obstruction in male cats is a life-threatening emergency. The narrow male urethra can become blocked by crystals, mucus plugs, or stones. Without treatment, death can occur within 24-48 hours due to kidney failure and cardiac arrest from potassium buildup.
Warning Signs
- Straining in the litter box with little or no urine output
- Crying or vocalizing while trying to urinate
- Licking the genital area excessively
- Blood in urine
- Urinating outside the litter box (small amounts)
- Lethargy, vomiting, collapse (late signs)
What to Do
If you suspect blockage, go to an emergency vet immediately. This is NOT something to wait on. Treatment involves catheterization to relieve the blockage, IV fluids, and hospitalization for 2-5 days.
Prevention
- Feed wet food (increases water intake)
- Provide multiple water sources and a cat fountain
- Reduce stress (environmental enrichment, Feliway)
- Maintain healthy weight
- Feed urinary-specific diets if recommended by your vet
Recurrence Risk
Cats who've had one blockage have a 30-50% chance of recurrence. In severe cases, a surgical procedure called perineal urethrostomy (PU) widens the urethral opening.









