One thing that often surprises homeowners is that bed bugs leave evidence behind even when you can’t find the insects themselves.
One of the clearest signs is their shed skins.
Why do bed bugs shed their skin?
As young bed bugs grow, they moult.
Instead of gradually stretching, they crawl out of their old outer skin and leave it behind.
This happens several times before they become adults.
What do the shells look like?
They look almost identical to a live bed bug, just empty.
They’re usually:
- Pale yellow or light brown.
- Dry and papery.
- Hollow.
- The same shape as a bed bug.
- Slightly translucent.
Many people think they’ve found a dead bed bug, but it’s actually just the empty shell.
Where do you find them?
Usually wherever bed bugs are hiding.
That might be:
- Mattress seams.
- Bed frames.
- Behind headboards.
- Upholstered furniture.
- Cracks close to the bed.
Because the shells don’t move, they can build up over time if an infestation has been present for a while.
We’ve spotted this on multiple occasions
Homeowners often vacuum away the cast skins without realising how useful they are.
From my point of view, they’re valuable evidence.
Even if the insects are hidden, the shells tell me bed bugs have been active in that area.
My advice
If you find what looks like an empty bed bug, don’t throw it away straight away.
Take a clear photo or keep it in a small container.
It could help confirm the identification later.