Termite damage typically does not begin to show until a very mature colony has been active for some time. If you’re lucky, you can start to notice the signs of termite damage early on. These include mud tubes, holes in your wood, termite droppings (frass), discarded wings, and, of course, seeing swarming termites. Termites can cause a lot of damage that goes unnoticed, so it’s important to look for early signs of termites as often as you can.