The answer to 'why do I have rat' is that rats are a common household pest that can be attracted to homes for a variety of reasons. Rats are often drawn to homes that provide easy access to food, water, and shelter. Common causes include improperly stored food, leaky pipes or standing water, and access points like cracks or holes in the home's exterior.
Symptoms of a rat infestation can include seeing the rats themselves, finding droppings, hearing noises in the walls or attic, or spotting signs of gnawing or nesting. If you suspect you have a rat problem, it's important to take action quickly to prevent further damage and the spread of disease.