Does one mouse mean an infestation?

Question: Does one mouse mean an infestation?

Answer: One mouse is not considered an infestation, per se. However, one mouse will almost always lead to an infestation if control methods are not put in place. One pregnant female mouse can produce as many as 10 litters in one year, so it’s easy to see that one mouse will soon become many mice unless an effective Integrated Pest Management (IPM) is put in place. So, if a home or business owner is seeing mouse droppings or signs of mouse feeding, that is a good sign that more than one mouse is inside the structure.