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My dog just ate a whole corn on the cob — is that an emergency?

Dogs · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Yes, this is a high-risk emergency. The cob itself is indigestible and is a classic cause of a life-threatening intestinal blockage. Do not wait for symptoms like vomiting or lethargy to appear. Contact your emergency vet or the ASPCA Animal Poison Control Center at 888-426-4435 immediately for triage guidance. While the corn kernels are safe, the cob must be addressed by a veterinarian, often requiring surgical removal.

Corn on the cob — Food safety facts

Do not feed · Dogs · full breakdown on the linked food page

Dangerous for dogs: the cob is a classic cause of intestinal blockage and can be fatal. Kernels off the cob are fine.

Open the full food page: Corn on the cob food facts →

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