Travelers setting off on their journey may not realize that most travel insurance plans do not cover pre-existing medical conditions. Pre-existing conditions are those medical conditions that the individual may have been diagnosed with, had treatment for, or is taking medication for before the insurance started. Routine health care for chronic conditions like diabetes and high blood pressure are not a policy benefit. However, if the traveler experiences a unexpected or sudden medical emergency caused by a pre-existing medical condition, travel insurance that provides them with coverage for acute onset of their pre-existing condition may cover for such conditions. Of course, the main stipulation is that the policyholder’s condition is life-threatening and requires immediate medical attention.