Subterranean termites are a type of termite that live underground and feed on wood and other cellulose-based materials. They can cause significant damage to homes and other structures if left untreated. The damage caused by subterranean termites can be difficult to detect, as they often feed on the inside of wooden structures and leave only a thin layer of wood intact on the surface. Some signs of subterranean termite damage include:

1. Hollow-sounding wood: If you tap on a piece of wood and it sounds hollow, this may indicate that termites have eaten away at the inside.

2. Buckling or sagging floors: Subterranean termites can weaken wooden floors, causing them to buckle or sag.

3. Cracked or distorted paint: As termites feed on wood, they can cause the paint to crack or distort.

4. Mud tubes: Subterranean termites build mud tubes to travel from their underground colonies to their food sources. These tubes can be seen along the foundation of a house.

5. Discarded wings: When termites swarm, they shed their wings. If you find discarded wings near windows, doors, or other entry points, this may indicate a termite infestation.

If you suspect that your home has subterranean termite damage, it is important to contact a pest control professional as soon as possible. They can assess the extent of the damage and recommend treatment options to eliminate the infestation and prevent further damage.