Understand to care
Noticed marks on your skin and want to understand what might be happening? This guide helps you recognise some signs and know what to look for at home.
The images are illustrative. Reactions vary between people and may look similar for different insects. The appearance of a bite alone does not confirm the pest. [1]
Compare skin and environmental signs
Choose an insect to learn about common signs. The image shows the insect or an illustrative guide; it is not a diagnosis of skin marks.
Illustrative image — enlarge the full poster at the top of this page.
Marks can appear individually, in clusters or in a line. They may appear some time after the bite.
Check mattress seams, the headboard, bed base and cracks. Look for insects, shed skins and dark stains.
Bites in a line do not confirm bed bugs. Identification requires examining the insect or evidence in the environment.
Ask for help on WhatsApp01 / Signs to observe
While resting
Marks may appear in clusters, lines or scattered areas, often on skin exposed during sleep. They may take several days to appear.
Check mattress seams, the bed frame and headboard. Look for insects, small dark stains, blood spots on sheets or shed skins. [1] [2]
Fabrics and resting areas
Bites often appear in groups, especially below the knees, and may itch.
Check carpets, pet bedding and resting areas. If you have pets, seek veterinary advice about fleas and appropriate care. [3] [4]
Context matters too
Bites often form small, itchy bumps. Their appearance may overlap with other types of bite. [1] [3]
Check whether mosquitoes are present and note where you were when you first noticed the marks. This helps establish the context.
02 / The next step
Inspect the bed, sofa and places where you found signs.
A clear photo of the insect and evidence in the area can help with identification.
Tell us how long this has been happening and which rooms show signs.
GestHigiene helps assess evidence of pests in your property and determine the next step.
