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Seasonal health risks for dogs

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2026-09-28 08:51 UTC → 2026-10-10 03:29 UTC · added ~~removed~~

Veterinary experts and health guidance have highlighted various seasonal risks for dogs during the transition into autumn. Initial guidance focused on physical activity and nutrition, advising owners to increase exercise duration gradually to prevent injuries. Dietary warnings were issued regarding high-calorie treats, while environmental hazards such as grass seeds and wild mushrooms were identified as significant dangers. Recent warnings have expanded to include specific botanical toxins. Horse chestnuts have been identified as a major risk; they contain aesculin, which is toxic in the leaves, flowers, bark, and seeds. Beyond chemical poisoning, consuming chestnuts can cause physical intestinal obstructions. Symptoms like vomiting and diarrhea typically appear within two days, with puppies being particularly vulnerable to curiosity-driven ingestion. In Slovenia and Croatia, veterinarians have issued urgent warnings regarding Colchicum autumnale, also known as autumn crocus or autumn meadow saffron. All parts of this plant—including flowers, leaves, seeds, and bulbs—contain colchicine, a potent alkaloid that inhibits cell division. Ingestion can cause excessive salivation, bloody vomiting, abdominal pain, and difficulty breathing. Severe cases may lead to organ failure in the liver and kidneys, shock, or death. Experts advise seeking immediate veterinary attention even if symptoms are not yet present, and suggest providing a plant sample or photograph to assist in diagnosis. In the United Kingdom, the PDSA has expanded the list of seasonal hazards for dogs and cats. Beyond the autumn crocus, they warn that grapes and grape-containing products are toxic. Acorns from oak trees may also cause stomach upset or intestinal blockages. Additionally, common garden plants such as azaleas, rhododendrons, chrysanthemums, ivy, holly, mistletoe, and hydrangea can be harmful, as can onions and garlic. Owners are cautioned that symptoms of ingestion may include vomiting, diarrhea, low energy, loss of appetite, pale gums, drooling, tremors, or difficulty breathing.

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