The answer to 'why is my silverfish scratching sounds' is that the scratching noises are likely caused by silverfish moving around and feeding on materials in your home. Silverfish are small, wingless insects that thrive in damp, dark areas and feed on things like paper, fabrics, and starches. As they move around and chew on these materials, they can make audible scratching or rustling sounds that homeowners may notice.
Silverfish are generally harmless to humans, but their presence can be a nuisance and lead to damage over time. If you're hearing persistent scratching sounds, it's a good sign that you have an active silverfish infestation that should be addressed. You can try DIY methods like sealing cracks, using traps, or applying diatomaceous earth, but for severe infestations, it's best to call a professional pest control expert who can properly identify the problem and implement effective treatment solutions.