When Cat Peeing Around the House Means a Blockage
📝 Summary
A cat urinating in odd spots may have a urinary blockage: straining, blood, only drops, tender belly. Causes include stones (acid urine favors oxalate, alkaline favors struvite), bacterial cystitis, fatal urethral plugs, and self-limiting idiopathic cystitis. A full blockage is an emergency - over 24 hours causes kidney failure. Prevent with water, fewer mineral treats, clean litter and low stress.
1 Recognize a Blockage
A cat peeing everywhere may have a blockage. Signs: pink/clear urine, frequent straining, blood, meowing in the box, licking the genitals, a tender belly that resists touch, and only a little urine when the bladder is pressed. Blockage is the complete stop of urination; less than 1 mg/kg/hr is oliguria, none is a blockage. A full blockage needs emergency catheterization – waiting over 24 hours brings acute kidney failure and death.
2 Causes and Prevention
Stones: diet can raise stone-forming minerals (calcium, magnesium, phosphate); acid urine favors calcium oxalate, alkaline favors struvite. Lower urinary tract syndrome includes bacterial cystitis (more common in females with shorter wider urethras), urethral plugs from sloughed tissue that can be fatal in 1-2 days, and idiopathic cystitis (50-60% of bloody/straining cases, unknown cause, self-heals in 7-14 days if not blocked). Prevent with more water (wet food/cans), fewer mineral treats like dried fish, clean litter so the cat does not hold urine, and lower stress.
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