A flea infestation occurs when a large number of fleas, small parasitic insects, invade an area, often affecting pets like dogs and cats. These pests feed on the blood of their hosts, leading to discomfort and potential health issues. Fleas can reproduce quickly, with a single female laying hundreds of eggs, which can fall into carpets, bedding, and other areas. Controlling a flea infestation typically involves treating both the pets and the environment. This may include using flea treatments for animals, vacuuming regularly, and washing bedding in hot water. Effective management is essential to prevent the infestation from recurring.