Excessive Scratching, Licking and Chewing
These are the most common signs of a flea infestation. Flea bites can cause intense itching and discomfort, leading your pet to scratch, bite and lick their skin to alleviate the irritation. They’re most likely to scratch behind the ears or around the neck, tail and stomach.
Hair Loss
Flea bites can cause hair loss, particularly in areas where the fleas are most active. If you notice your pet has bald patches or thinning fur, it could be a sign of an infestation. Hair loss can also be a sign of other, more serious health problems, so have your pet professionally examined.
Irritated Skin
Your pet might have irritated skin from the flea bites themselves, or from excessive scratching to alleviate the itch. It might appear red, inflamed or irritated, and you may notice small bumps or sores. The trouble areas will likely be in the same spots as hair loss or thinning.
“Flea Dirt”
You may notice small black or brown spots in your pet’s bedding or fur. These are flea droppings, aka “flea dirt,” resembling tiny specks of sand. These specks may also turn red when wet due to the blood inside them.
A quick way to check for flea dirt: Have your pet stand on a white towel and brush them. If you see these specks, it’s likely fleas.
Changes in Coat Color
In some cases, flea bites can change the color of your pet’s coat. A dog with a light-colored coat may develop small, reddish-brown spots where fleas have been feeding. Flea dirt can also accumulate on the coat, causing discoloration.
Pale Gums
Fleas can also cause anemia, resulting in weakness, lethargy and even death. Pale gums can be one obvious sign of anemia.
To check your pet’s gums, gently lift their lip and examine the color. If the gums appear pale or white, have your pet examined by a veterinarian.