The answer to 'what do flea look like' is that fleas are small, wingless insects that are about 1/8 to 1/6 inch long. They have flat, reddish-brown bodies and long, powerful hind legs that allow them to jump up to 13 inches high and 8 inches long. Fleas have a hard, protective exoskeleton and can be difficult to see with the naked eye.
Fleas are excellent jumpers and can move quickly, making them challenging pests to spot. They feed on the blood of their hosts, which can include humans, pets, and other animals. Flea bites often appear as small, red, itchy spots on the skin.