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revised April 01, 2020

Health Protection

Animals, bugs and pets

Bed Bugs

Bed bugs are small insects, with oval-shaped bodies and no wings. An adult bed bug is the size of an apple seed and is a reddish brown colour. They feed on human blood by biting at night. You may not be aware that you have bed bugs in your home because bed bugs prefer to hide in dark, small spaces and some people have no reaction to bed bug bites.

Signs of a bed bug infestation may include:

  • Red bumps or welts on your skin
  • Live or dead bed bugs, or bed bug skins
  • Dark brown spots, or rust-coloured blood smears in the seams and crevices of mattresses, box springs, headboards, chairs and other sleeping areas.

An adult bed bug is about the size of an apple seed.

Dark brown spots and rust-coloured smears on a mattress seam indicate a bed bug infestation.
* All photos used with permission from M. Potter, University of Kentucky *

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Revised: April 01, 2020

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