Describe without concluding
Marks on bedding or a sighted insect are not enough to confirm bed bugs. Note the locations and dates of observations for possible identification.
Avoid unnecessary movement
Do not move bedding or furniture between rooms to try to solve the problem. Mention recent travel, items brought in and measures already taken when making your enquiry.
Clarify preparation
If an intervention is proposed, request written preparation and follow-up instructions before acting. The professional must explain what applies to your situation; do not assume one method suits every home.