The answer to 'why is my silverfish trails' is that silverfish are a common household pest that leave behind distinctive trails and droppings. Silverfish are small, wingless insects that feed on carbohydrates, proteins, and cellulose found in things like paper, glue, and fabrics. Their trails are often visible along baseboards, in corners, and around areas with high moisture.
Silverfish trails are a sign of an infestation, and can indicate where the pests are living and traveling. Addressing the underlying causes, such as excess moisture and food sources, is key to getting rid of silverfish. DIY solutions like sealing cracks, using diatomaceous earth, and setting traps may be effective for minor infestations, but for severe or recurring problems, it's best to call in a professional pest control technician.