From the University of Wisconsin Health Website:
What are bedbugs?
Bedbugs are flat, wingless insects about 0.25 in. (0.6 cm) long. They range in color from almost white to brown. They turn rusty red after feeding. Like mosquitoes, bedbugs feed on blood from animals or people.
Bedbugs have that name because they like to hide in bedding and mattresses. Bedbugs usually hide during the day and are active at night when they feed. They can go for weeks without feeding.
Itching from the bites can be so bad that some people will scratch enough to cause breaks in the skin that get infected easily. The bites can also cause an allergic reaction in some people.
Where can you find bedbugs?
Bedbugs are found worldwide. They are most often found in hotels, motels, hostels, shelters, and apartment complexes where large numbers of people come and go.
Because bedbugs hide in small crevices, they can come into your house on luggage, furniture, clothing, pillows, boxes, and other objects. The bugs can hide in beds, floors, furniture, wood, and paper trash during the day.
How do you know if you have bedbugs?
The first sign of bedbugs may be red, itchy bites on the skin, usually on the arms or shoulders. Bedbugs tend to leave straight rows of bites, unlike some other insects that leave bites here and there.
Look also for these other signs:
- The bugs themselves, especially along the seams of mattresses.
- Tiny bloodstains on sheets and mattresses.
- Dark spots of insect waste where bedbugs might crawl into hiding places on furniture, walls, and floors.
- A sweet odor from bedbugs’ scent glands where bedbugs are found in large numbers.