The answer to 'why is my bed bug trails' is that bed bug trails are a common sign of a bed bug infestation in your home. Bed bugs leave behind small, dark spots and trails as they move around, which are their droppings and molted skins. These trails are often found on mattresses, box springs, bed frames, and other areas where bed bugs hide and feed.
Bed bugs are small, flat insects that feed on human blood, typically at night while you're sleeping. They can hide in cracks, crevices, and other tight spaces, making them difficult to detect. In addition to the visible trails, other signs of a bed bug infestation may include itchy bites, blood spots on your sheets, and the presence of the bugs themselves.