Warbles, also known as cuterebra, are parasitic larvae from botflies that infect cats. These larvae burrow under the cat’s skin, creating painful swellings. Warbles are common in outdoor cats, especially during warm months when botflies are active.
The larvae grow inside the skin, forming a lump with a small breathing hole. If left untreated, warbles can cause infections or other serious health problems. Recognizing and treating them early is crucial for your cat’s health.
How Do Cats Get Warbles?
Cats usually get warbles by coming into contact with botfly eggs. These eggs are often found on grass, soil, or near rodent burrows. When a cat brushes against them, the eggs stick to their fur and later hatch into larvae. The larvae then enter the cat’s body through openings like the nose, mouth, or small skin wounds.
Outdoor cats are at higher risk, but indoor cats can also get warbles if they spend time near open windows or screened porches where botflies may lay eggs.
Symptoms of Warbles in Cats
The most common signs of warbles in cats include:
A visible lump or swelling – Usually with a small hole in the center.
Discharge or oozing – Pus or blood may come out of the lump.
Pain or discomfort – Your cat may lick, scratch, or bite the area.
Lethargy or fever – If an infection develops.
Respiratory issues – Rarely, if larvae enter the nose or throat.
If you notice any of these symptoms, take your cat to the vet immediately.
Diagnosing Warbles in Cats
A vet can diagnose warbles by examining the lump. Sometimes, they may use imaging tests like X-rays or ultrasounds if the larvae have moved deeper into the body. Blood tests may also be done to check for infections.
Never try to remove a warble at home—improper removal can cause severe infections or leave parts of the larvae inside the skin.
How to Treat Warbles in Cats
1. Veterinary Removal
The safest way to remove a warble is by a vet. They will:
Clean the area with antiseptic.
Gently extract the larva with forceps.
Flush the wound to remove any remaining debris.
Prescribe antibiotics if an infection is present.
2. Medications
Your vet may prescribe:
Antibiotics – To prevent or treat bacterial infections.
Anti-inflammatory drugs – To reduce swelling and pain.
Topical ointments – To help the wound heal faster.
3. Home Care After Removal
Follow your vet’s instructions for home care, which may include:
Keeping the wound clean.
Preventing your cat from scratching the area (using an Elizabethan collar if needed).
Monitoring for signs of infection (redness, swelling, or pus).
Preventing Warbles in Cats
The best way to protect your cat from warbles is prevention. Here are some tips:
Keep your cat indoors – Especially during botfly season (summer and early fall).
Check your cat’s fur regularly – Look for lumps, especially after outdoor adventures.
Use flea and tick preventatives – Some products also repel botflies.
Maintain a clean environment – Remove rodent nests near your home where botflies may lay eggs.
Possible Complications of Warbles
If not treated properly, warbles can lead to:
Secondary infections – Bacteria can enter through the open wound.
Abscesses – Pus-filled pockets under the skin.
Allergic reactions – Some cats may have severe swelling or itching.
Migration to internal organs – Rare but dangerous if larvae move to the brain or lungs.
Early treatment reduces these risks significantly.
When to See a Vet
Contact your vet immediately if:
You see a lump with a small hole.
Your cat seems in pain or keeps scratching one spot.
The wound looks infected (red, swollen, or oozing pus).
Your cat has trouble breathing (possible respiratory involvement).
Natural Remedies for Warbles (Myths vs. Facts)
Some pet owners try home remedies, but most are ineffective or dangerous.
Applying Vaseline or bacon grease – Does not suffocate the larva and may cause infections.
Squeezing the lump – Can push larvae deeper or rupture them, causing severe reactions.
Keeping the area clean – Helps only after professional removal.
Always consult a vet before trying any home treatments.
Conclusion
Warbles are painful and can lead to serious infections if untreated. The best approach is prevention—keeping your cat indoors, checking their fur often, and using vet-approved preventatives. If you suspect your cat has a warble, see a vet right away for safe removal and proper care.
By staying alert and taking quick action, you can keep your cat healthy and free from these harmful parasites. Always consult your vet for the best treatment options tailored to your pet’s needs.
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