What Is a Botfly Infection in Cat

What Is a Botfly Infection in Cats?

Botflies are insects that normally target rabbits and rodents. When a curious cat sticks its nose into a burrow or tall grass, botfly larvae can attach to the skin and burrow just beneath the surface.

Inside, the larva creates a swollen lump with a small hole in the center (used for breathing). Pet owners often describe seeing something worm-like moving inside this lump — which is actually the botfly larva growing under the skin.

This condition is called a cutaneous warble.

Symptoms of Botfly (Warble) Infection in Cats

Raised lump or swelling under the skin (commonly on the head, neck, or legs)
A small central hole in the lump (the breathing hole)
Discharge (blood or pus) from the opening
Cat excessively licking, scratching, or pawing at the lump
In some cases, lethargy, fever, or loss of appetite if infection spreads

What NOT to Do

Do not squeeze or try to pull the larva out. If the larva breaks, parts may remain inside, causing severe inflammation and infection.
Do not use home remedies like oils or chemicals. They may irritate the skin and harm the cat.

Veterinary Treatment

A veterinarian should always handle a botfly infection. The typical steps include:

Examination – Confirming the presence of a botfly larva.
Safe Removal – The larva is carefully extracted, often under sedation or local anesthesia, to prevent rupture.
Wound Care – The cavity is cleaned and sometimes flushed to remove bacteria.
Medication – Antibiotics and anti-inflammatory medicine may be prescribed.
Follow-up – Monitoring the wound until it heals, which usually happens within 1–2 weeks.

Home Care After Vet Treatment

Keep the wound clean and dry as instructed.
Prevent the cat from scratching or licking the area (use an e-collar if needed).
Give all prescribed medications exactly as directed.
Watch for swelling, discharge, or signs of infection.

Prevention

Keep cats indoors during botfly season (late summer and early fall in many regions).
Avoid letting cats explore rabbit or rodent burrows.
Regularly check outdoor cats for unusual lumps or wounds.
Maintain parasite prevention and routine vet checkups.

Final Thoughts

Botfly infections in cats can look frightening, but with proper veterinary care, most cats recover fully without long-term problems. The most important thing is never to attempt removal at home. Quick and safe veterinary treatment will relieve your cat’s discomfort and prevent complications.

What Is a Botfly Infection in Cat