TL;DR: Most household insects are non-toxic to cats and rarely cause issues beyond mild stomach upset. Monitor your cat for 24 hours and try to provide a photo of the insect to help a veterinarian rule out venomous species or parasites.
Why do cats eat bugs and is it normal behavior?
Cats are natural hunters with a strong predatory drive, and it is very common for them to ingest insects they find around the home. Whether it was a fly, moth, or a small beetle, most insects are composed primarily of protein and chitin. While it may seem unappealing to us, this behavior is a normal part of feline curiosity.
Is it an emergency if my cat eats a bug?
- Urgency Level: Low
- Eating a single household bug is rarely an emergency as most common insects are non-toxic.
- Monitor your pet for 24 hours for signs of mild gastrointestinal upset, such as a single episode of vomiting or soft stool.
- Minor digestive symptoms usually resolve on their own without medical intervention.
How does a photo of the insect help with veterinary triage?
- A clear photo is a vital tool for identifying if the insect was a venomous species, like certain spiders or stinging insects.
- Images help veterinarians determine if the bug is a known carrier of parasites, such as lungworms or stomach worms.
- If you cannot photograph the specific insect eaten, a photo of a similar one found in the same area is also helpful for identification.
Clinical Context (Merck Veterinary Manual)
In pseudomyiasis, dipteran larvae are accidentally ingested and found within an animal's gastrointestinal tract, where they cannot continue development. Dogs or cats infested with larvae from myiasis-producing flies may ingest the larvae. Rarely, larval rupture can cause anaphylaxis.
Chapter: Parasitology, Gastroenterology
Source: The Merck Veterinary Manual, 11th Edition (Page 903)