07/09/2026
ποΈ How big is a bed bug? Bigger than many people realise!
One of the most common misconceptions we hear is that bed bugs are so tiny that theyβre almost impossible to see with the naked eye.
In reality, a fully grown adult bed bug is roughly the size of an apple seed β around 5β7 mm long. They are flat, oval-shaped and usually brown/reddish-brown, becoming darker and more swollen after feeding.
π These photographs were taken during a recent bed bug inspection in Drogheda, Co. Louth. We are currently seeing an increase in bed bug problems and enquiries coming from the Drogheda and surrounding Louth area.
Adult bed bugs are easily visible to the naked eye β you don't need a microscope or magnifying glass to see them. Younger stages (nymphs), however, are considerably smaller and paler, making early infestations more difficult to spot.
π Often the first clue isn't the bed bug itself.
Check carefully around mattress seams, piping, labels, bed frames, headboards, screw holes and joints. One of the most important warning signs is small black or very dark spots.
These can be bed bug faecal staining, often appearing like tiny black dots or ink marks on sheets, mattress corners, seams, bed frames and around their hiding places.
Finding clusters of these dark spots can be a strong indication of bed bug activity, even if you haven't actually seen a live bed bug.
SafeSecure.ie Pest Control
Professional Bed Bug Inspections & Treatments
π Drogheda β’ Louth β’ Meath & surrounding areas