How to Tell If You Have Fleas
Flea infestations aren’t always obvious — especially in the early stages or in homes without pets. Knowing what to look for can help you identify the problem early and take action before it escalates.
1. You’re Getting Bitten — Especially Around Ankles and Legs
Flea bites are small, intensely itchy red spots that typically appear in clusters or rows. They are most common around the ankles, lower legs and feet because fleas are ground-level insects that jump from carpet to the nearest warm-blooded target. If you’re waking up with unexplained bites concentrated on the lower body, fleas are a likely cause.
2. Your Pets Are Scratching Excessively
Pets often show the first signs of a flea problem. Watch for:
- Constant scratching, chewing or grooming — especially around the neck, base of the tail and stomach
- Red or irritated skin, scabs or hair loss in heavily scratched areas
- Restlessness or agitation, particularly at night
Cats are fastidious groomers and may remove most of the fleas from their coat before you ever notice them — but excessive grooming is itself a sign.
3. Flea Dirt (Flea Faeces)
Flea dirt looks like small black or dark brown specks — similar to ground pepper. It’s actually flea faeces, composed primarily of digested blood. You’ll commonly find it:
- In your pet’s fur, especially around the neck and base of the tail
- On pet bedding or where the pet spends time on the floor
- On light-coloured furniture or carpet
Test: Place the specks on a damp white paper towel. If they turn reddish-brown, it’s flea dirt (the blood dissolves). If they stay black, it’s regular dirt.
4. You Can See Fleas Jumping
Adult fleas are 1–3mm long, dark reddish-brown and move very quickly. They are excellent jumpers — capable of jumping 30cm vertically. To check for fleas:
- Wear white socks and walk slowly through carpeted areas — fleas will be visible against the white fabric
- Place a shallow dish of water with a small amount of dish soap in the centre of the room. Fleas are attracted to heat — place a lamp or candle near the dish at night. Fleas jump toward the light, fall into the water and the soap prevents them from escaping.
5. Flea Eggs and Larvae in the Environment
Flea eggs are tiny, white, oval and nearly invisible. Larvae are slightly larger, cream-coloured and worm-like. You’re unlikely to see them without looking specifically — but running a fine-toothed comb through carpet fibres may reveal them.
6. Pets Avoiding Certain Areas
If your pet suddenly stops resting in their usual spots, this can be a sign that the flea population in that area has become uncomfortable for them.
What to Do Next
If you’ve identified any of these signs, act quickly. Flea populations double rapidly — a small infestation can become severe in a matter of weeks. Contact Pestyologist for a professional flea treatment in Sydney, or get in touch to discuss your situation first.