Wood damage can occur when termites get into the picture. There is a joke in here somewhere. Your house is just sitting there waiting to be attacked by these wood eating machines. There is an old saying “It’s not a matter of if, it’s a matter of when”, most homes in the South are vulnerable to these attacks.
If your home is over 15 years of age, the original pretreat may be gone. I believe if the termiticide is under the slab it last longer, so checking the outside of the home is important. If your home is stucco, and it goes into the dirt – maybe check it more often than yearly. Wood damage often will go unnoticed until someone notices a tube on the ceiling or wall. My personal belief is that you should have an inspection yearly.