Bedbug Bites: Symptoms & Signs

Medically Reviewed on 12/15/2020

Bedbugs (Cimex lectularius) are small, oval insects. Bedbugs are 5-7 mm in length and do not fly. Bedbugs can live anywhere in the home and are most active at night. For example, they may live in cracks in furniture or in any type of textile, including upholstered furniture. Bedbug infestations are most common in beds, including the mattress, box springs, and bed frames.

Signs and symptoms of bedbug bites include

They are typically not painful. The face, neck, hands, and arms are common areas for bedbug bites because these areas are most likely to be exposed while sleeping.

Cause of bedbug bites

Bedbugs feed by sucking blood from humans or other warm-blooded animals.

Other bedbug bites symptoms and signs

  • Itching
  • Skin Redness
  • Small, Flat, or Raised Bumps on the Skin
  • Swelling


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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.