Flea bites on human skin appear as small, itchy, red bumps or blisters, often in clusters or lines, caused by the saliva of fleas, typically occurring on arms, legs, and torso, with some bites becoming inflamed, swollen, or infected, requiring prompt treatment to prevent complications.
A medical illustration of the flea life cycle, showing the different stages of development from egg to adult, with a red arrow pointing to the biting stage, accompanied by a caption "Flea bites: a nuisance for humans and pets alike".
An illustration of a flea jumping onto a person's skin, with a red "X" marking the spot where it will bite, surrounded by a subtle background of a dog's fur.
A close-up photograph of a human arm with several small, red, itchy bumps caused by flea bites, with a magnifying glass hovering above to highlight the tiny puncture wounds.