This can be tricky as termites are expert hiders and live most of their lives undetected. Termites can leave behind signs that can indicate an infestation, such as wings, droppings, mud tunnels, and damage. If you suspect a termite infestation, the best thing to do would be to get a professional pest control company qualified for WDO (Wood Destroying Organism) or WDIR (Wood Destroying Insect Reports) to perform an inspection. A homeowner can perform the inspection on their own. However, the homeowner would risk misidentifying signs of the termite presence.