The answer to 'signs of rat' is that common signs of a rat infestation include droppings, gnaw marks, nests, and sightings. Rats are nocturnal and leave behind telltale signs like small dark droppings, holes chewed through drywall or wood, and piles of shredded material used for nesting. You may also hear scratching or scurrying sounds in the walls or attic at night.
If you suspect a rat problem, it's best to call a professional pest control technician. Rats can spread diseases, damage property, and be difficult to fully remove on your own. A pest control expert can properly identify the issue, use safe and effective methods to eliminate the rats, and prevent future infestations.