Bleach

Why is it risky?

Household bleach contains sodium hypochlorite, a strong oxidizer. Cats are exposed by walking on recently cleaned surfaces and then grooming their paws. Bleach causes chemical burns to mucous membranes and oxidative tissue damage. Cats are more sensitive than dogs due to differences in metabolic detoxification pathways.

Affected Systems

Digestive · Skin · Respiratory

Symptoms

Contact or ingestion: drooling, pawing at mouth, vomiting, foaming, oral irritation. Inhalation: coughing, sneezing, watery eyes, respiratory distress. Concentrated exposure: severe chemical burns, pulmonary edema.

What To Do

Skin or paw contact: rinse thoroughly with water. Mouth contact: rinse with water. Do NOT induce vomiting, bleach causes additional burns on the way back up. Vet visit if symptomatic.

Notes

Surfaces cleaned with diluted bleach are safe once fully dry and well-ventilated. Always rinse surfaces where cats walk. Avoid using bleach in litter areas. Notably, some cats appear attracted to bleach odor, this may be because certain chlorine compounds structurally resemble feline pheromones. Curiosity does not equal safety.

Sources

→ ASPCA Animal Poison Control Center

→ Pet Poison Helpline — https://www.petpoisonhelpline.com/?s=bleach

See Also

Phenolic Disinfectants (Dettol, Original Lysol, TCP) · "Natural" Flea Repellents (Essential Oil-Based) · DEET-Based Insect Repellents