Bed bugs are small, brown insects that look like ovals. They live by feeding on the blood of animals or humans. Bed bugs size is usually about the size of an apple or lemon seed. After bed bugs have a blood meal, their bodies can swell dramatically and they turn from brown to red.
While bed bugs do not fly, they can move quickly. They are small and hard to spot, so they move quickly throughout floors, walls, and ceilings. Females can lay hundreds of bed bugs eggs at a time. Because they are the size of a speck of dust, they are even harder to spot. For those wondering, “where do bed bugs come from,” the answer is that they come from other infested areas, entering the home on furniture, backpacks, purses, or luggage. This mode of transmission is the main answer to, “what causes bed bugs.” If you are wondering how to check for bed bugs, there are a few signs that you should spot.