No traveler wants an unwanted souvenir hiding in their luggage. A new report suggests that some U.S. destinations may have a higher likelihood of bed bug encounters than others.

According to the report, Warren, Michigan, ranked as the city with the highest estimated risk of bed bugs, while Michigan topped the list as the state most likely to experience infestations. Other cities ranking near the top included North Las Vegas, Nevada; Madison, Wisconsin; Yonkers, New York; and Flint, Michigan.

The rankings were based on data from pest control companies and online hotel reviews rather than official government infestation records, so they should be viewed as an indicator rather than a definitive measure.

Fortunately, there are simple ways to reduce your risk while traveling. Experts recommend keeping your luggage on a rack instead of the bed or floor, avoiding unpacking clothes into hotel drawers, and inspecting the mattress seams and headboard before settling into your room. After returning home, wash and dry your clothing using high heat, which can help eliminate bed bugs and their eggs.

The U.S. Environmental Protection Agency also advises using heat as one of the most effective methods for treating bed bug infestations if they are discovered.

The Takeaway: Bed bugs can show up almost anywhere, but a few simple habits—like checking your hotel room and avoiding unpacking into drawers—can significantly reduce the chances of bringing them home.