Bed Bug Identification

Expert guides to identifying bed bugs at every life stage, spotting their signs and telling them apart from look-alike insects in California homes.

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Flat illustration of a mattress seam with pale, empty bed bug shells in growing sizes next to one reddish live bed bug
Bed Bug Identification

What Do Bed Bug Shells Look Like? Shed Skins and What They Mean

What do bed bug shells look like? They are pale, hollow, see-through skins shaped like the bug, left each time a nymph molts. See…

 Flat illustration of a female bed bug next to a row of small white eggs and a blood drop, showing how many eggs a bed bug lays after one blood meal
Bed Bug Identification

How Many Eggs Does a Bed Bug Lay?

How many eggs does a bed bug lay per day? Usually 1 to 7, often 2 to 5, for about 10 days after each…

 Flat illustration of a timeline of bed bug life stages from a small egg through growing nymphs to a dark adult bed bug, with a calendar
Bed Bug Identification

How Long Do Bed Bugs Live? Lifespan Explained

How long does a bed bug live? Usually several months to about a year. See the full life timeline from egg to adult, how…

 Flat illustration of 5 baby bed bug nymphs growing from small and pale to larger and red after a blood meal, next to a millimeter ruler
Bed Bug Identification

What Do Baby Bed Bugs (Nymphs) Look Like?

What does a baby bed bug look like? See all 5 nymph stages drawn to scale (about 1.5 to 4.5 mm), how they turn…

 Illustration of a single bed bug sealed in a clear zip bag next to a magnifying glass and a bed, with a note that one bug is not always an infestation
Bed Bug Identification

I Found One Bed Bug: What Should I Do?

Found one bed bug? Here is what to do if you find a bed bug: how to save it for ID, whether one bug…

 Illustration of a bed bug below a calendar of months next to a thermometer, showing that bed bugs can survive months without feeding
Bed Bug Identification

How Long Can Bed Bugs Live Without Food or a Host?

How long can a bed bug live without food? Adults usually last about 1 to 4 months in a normal home and up to…

 Flat illustration of a bed bug egg, nymphs and an adult lined up beside a sesame seed, an apple seed and a penny over a millimeter ruler
Bed Bug Identification

How Big Is a Bed Bug? Size Compared to Everyday Objects

How big is a bed bug? Adults are 5 to 7 mm, about an apple seed, and up to about 3/8 inch after feeding.…

 Illustration of bed bug eggs in a mattress seam next to a 15 day calendar and a thermometer showing that eggs hatch in about 6 to 10 days
Bed Bug Identification

How Long Does It Take for Bed Bug Eggs to Hatch?

Bed bug eggs hatch in about 6 to 10 days at room temperature, and nearly all within about 2 weeks. See the day-by-day timeline,…

 Illustration of a mattress seam with small dark bed bug fecal spots next to a damp white wipe showing a rusty brown smear
Bed Bug Identification

What Does Bed Bug Poop Look Like? Stains and Fecal Spots

See what bed bug poop looks like on sheets, mattresses, wood and walls, how to test a spot with a damp wipe, how to…

 Illustration of pearly white bed bug eggs about 1 mm long clustered in a mattress seam under a magnifying glass
Bed Bug Identification

What Do Bed Bug Eggs Look Like? Size, Color and Pictures

Bed bug eggs are tiny pearly white ovals about 1 mm long, glued into mattress seams and cracks. See their size, color, where they…
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