Bedbugs and Kissing Bugs

Topic Overview

What are bedbugs and kissing bugs?

Bedbugs are flat, wingless insects about 0.25 in. (0.6 cm) long. Kissing bugs are brown, wingless insects that are about 0.75 in. (2 cm) long. Bedbugs range in color from almost white to brown. They turn rusty red after feeding. Kissing bugs are dark brown or black with red or orange spots along the edge of their bodies. Like mosquitoes, bedbugs and kissing bugs feed on blood from animals or people.

Bedbugs get their name because they like to hide in bedding and mattresses. Kissing bugs get their name because they are often found around the mouth. Both kinds of bugs usually hide during the day and are active at night when they feed. They can go for weeks without feeding. See a picture of a bedbug.

Bedbugs do not seem to spread disease to people. Kissing bugs can carry a parasite that causes Chagas disease, but this is not common in the United States. But 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 and kissing bugs?

Bedbugs are found worldwide. Kissing bugs are found in warm southern states of the U.S., and in Mexico and central and South America.

Bedbugs are most often found in hotels, motels, hostels, shelters, and apartment complexes where large numbers of people come and go.

Because bedbugs and kissing bugs 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 or kissing bugs?

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.

Kissing bugs can cause patches of itchy bites around your mouth. The bites may swell and look like hives. The itching may last a week.

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.

How can you treat bug bites?

Home treatment can help stop the itching and prevent an infection. You can:

  • Wash the bites with soap to lower the chance of infection.
  • Use calamine lotion or an anti-itch cream to stop the itching.
  • Use an ice pack to stop the swelling.
  • See your doctor if you think the bite may be infected.

How do you get rid of bedbugs and kissing bugs?

To get rid of the bugs:

  • Remove debris, such as wood and paper trash piles, where these bugs may hide.
  • Wash, vacuum, or clean all furniture and bedding. Be sure to vacuum cracks in wood doors or floors where bugs may hide.
  • Put small things like jewelry boxes, pillows, and stuffed animals in a dark plastic bag, and leave them outside in the hot sun for 2 or 3 days.
  • Get rid of mattresses and box springs that have bedbugs. If you can't throw them out, then cover the mattress and box springs with a plastic mattress bag that traps the bugs.
  • Wash clothes and bedding in hot water, and dry them with the hot cycle of the clothes dryer.

If you can't get rid of bedbugs or kissing bugs yourself, you can call an insect control company for treatment choices. Make sure that the product the company uses has been shown to be effective against the bugs you are trying to get rid of.

When the bugs are gone, be sure to keep your house and bedding clean to prevent the bugs from coming back.

References

Other Works Consulted

  • Hwang SW, et al. (2005). Bed bug infestations in an urban environment. Emerging Infectious Diseases, 11(4): 533–538.
  • Steen CJ, Schwartz RA (2008). Arthropod bites and stings. In K Wolff et al., eds., Fitzpatrick's Dermatology in General Medicine, 7th ed., vol. 2, pp. 2054–2063. New York: McGraw-Hill.

Credits

By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Last Revised October 15, 2011

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