What are some flea bite symptoms, and what they look like? The main symptoms of flea bites are itchiness, a raised bump where the flea penetrated the skin (usually surrounded by a red halo, see the photos below), and the surrounding area can get a little red and inflamed.
All cats will find flea bites irritating but for some even a single bite can make them extremely itchy and sore.Discover the best ways to treat feline miliary dermatitis caused by fleabites. From flea medications to systemic antibiotics, find effective solutions for your cat's skin condition.

Flea bites look like small, itchy bumps that appear in clusters of three or more and are usually in a straight line. Healthcare professionals sometimes refer to this pattern as breakfast, lunch, and dinner. On lighter skin tones, flea bites may appear red and slightly swollen.

The reason why dogs and cats usually scratch themselves after getting flea bites is because of flea allergy. When the flea bites, it injects its saliva into the pet. This can cause allergenic reactions, which can last up to 2 weeks after the bite.
As fleas bite a dog and drink a blood meal they put their saliva into the dog, and that triggers an immune response. Over time, this immune response can become exaggerated, leading dogs to want to bite, scratch, and chew at themselves.