Companion Animals

Cat Megacolon Welfare

Feline megacolon causes chronic constipation and obstipation that progresses to irreversible colonic dilation, requiring proactive management and potentially surgery.

Key Facts

Megacolon causes progressive difficulty defecating, abdominal discomfort and toxin retention
Idiopathic megacolon accounts for 62% of cases in cats and has no identifiable cause
Dietary modification, lactulose and enemas manage mild cases but disease often progresses
Subtotal colectomy (partial colon removal) achieves good long-term welfare in most surgical candidates
Cats dehydrated from constipation require IV fluid therapy before any intervention

Welfare Considerations

Megacolon causes chronic suffering from constipation and systemic toxicity. Proactive management before irreversible dilation and timely surgical referral achieve the best welfare outcomes.

What You Can Do

Seek veterinary investigation for any cat straining to defecate for more than 24 hours
Ensure dietary fibre and hydration management is optimised as first-line megacolon management
Request surgical referral promptly if medical management fails to maintain adequate defecation