Part of a good termite inspection will involve an inspection and report on subfloor conditions. Termites and other timber pests (including wood rot) need moisture to survive. So it's important to know if your subfloor is wet or if there are moisture problems, things such as leaking pipes or overflows need to be reported on to make sure your property is at least risk of timber pests.
Steel rusting from the high moisture in the subfloor.
Wood rotting due to extremely high constant moisture in the subfloor.