How to understand that a flea has bitten you, what are the symptoms?
When bitten by a flea, a small rash appears on the skin (bumpy, cup-like), which has a kind of colorless circle around it.
Flea bites rarely cause serious or long-term health problems, but you will definitely feel discomfort and mild irritation for a short time. However, some fleas spread diseases, therefore, in similar clinical cases, the bite may be serious and have acute symptoms.
Fleas are active in warm weather - they are attracted to cool, shady places outdoors. They live around trees, in leaves, tall grass, bushes. If an animal passes through such a place, the flea will crawl on its body.
Dogs, cats, and other animals have fleas on their ears, neck, back, and belly. If the animal enters the house from the street, it is quite possible that the flea jumps out of its body and hides, for example, under the carpet, behind the furniture, in the bed, in a crack in the floor.
Fleas also bite humans, but they are more common in dogs and cats. Since cats and dogs have more hair than humans, fleas like their bodies and hide comfortably in their fur.
https://my.clevelandclinic.org/health/diseases/21718-flea-bites