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My 8-pound Yorkshire Terrier chewed and swallowed a 2-inch piece of sweetcorn cob three hours ago—what tests will the vet run and how long is recovery?

Dogs · Food safety

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

Short answer

Your vet will likely take abdominal X-rays to check whether the cob is blocking the intestines, and may run blood work to rule out infection or dehydration. If there's no obstruction, most small dogs pass a piece of cob within 24 to 48 hours. Watch closely for vomiting, diarrhea, straining to defecate, or unusual lethargy, and call your vet right away if any of those show up.

Sweetcorn kernels — Food safety facts

Safe to share · Dogs · full breakdown on the linked food page

Plain kernels are safe. The cob is not — it causes blockages and is a common surgery case.

Dogs and cats carry the same rating (Safe to share), so the notes below hold for either pet.

Sweetcorn kernels is not toxic to dogs. The real limit is calories, fat and salt, so treat it as a small extra alongside the normal ration rather than a meal in itself.

There is no poisoning risk here, and the usual problem is simply eating too much at once: a heavy fat or salt load can bring on loose stools or a single vomit. Offer water, keep an eye on the pet for 24 hours, and do not induce vomiting.

Why these cautions matter

Stone-fruit pits and some seeds release cyanide when crushed, and quite apart from that they are a choking and blockage hazard.

The full verdict, portion guidance and serving notes are collected on the Sweetcorn kernels food facts page.

Open the full food page: Sweetcorn kernels food facts →