Nose Worms in Cats: What You Should Know

What They Are

• In cats, the main parasite sometimes found in the nose is the nasal botfly larva (Cuterebra).

• The larvae may accidentally enter through the nose or mouth while the cat is exploring outdoors.

• In very rare cases, cats can also develop nasal infections from other parasites, like worms that migrate into the sinuses.

Signs and Symptoms

A cat with nasal parasites may show:

• Frequent sneezing

• Nasal discharge (clear, bloody, or pus-like)

• Pawing at the face or nose

• Swelling around the nose or eyes

• Whistling or noisy breathing

• In severe cases: lethargy, loss of appetite, or visible larvae if they emerge

Risks

• These parasites irritate the nasal passages and can cause secondary infections.

• Left untreated, they may damage nasal tissue or spread deeper.

Treatment

• Do NOT attempt to remove worms/larvae at home. Pulling them out the wrong way can leave pieces behind, leading to infection.

• A veterinarian can diagnose using a nasal exam or imaging.

• Treatment usually involves:

  • Careful removal of the larvae/worms

  • Medication (like antiparasitic drugs or antibiotics if infection is present)

  • Supportive care for inflammation and healing

Prevention

• Keep cats indoors or limit outdoor roaming during warm months (when botflies are most active).

• Regular veterinary checkups and parasite prevention.

• Monitor for any unusual sneezing, nasal discharge, or swelling.

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Bottom line: “Nose worms” in cats are usually botfly larvae or other rare parasites. If your cat shows signs like sneezing, nasal discharge, or swelling, see a vet immediately—safe removal and treatment are needed.