Does visitors insurance cover cancer treatment like chemotherapy for lung cancer, breast cancer, skin cancer, blood cancer, kidney cancer or thyroid cancer?

Unfortunately no. Visitors medical insurance only provides coverage for any new and unexpected illness or injury. This would cover things like: a snake bite while you are on a hike, a car accident, a high fever, etc. If the traveler has already been diagnosed with cancer, it becomes a pre-existing medical condition, which unfortunately is not covered by these travel medical insurance policies. Any conditions that the patient is already aware of is considered a pre-existing condition. Whether or not a condition is considered pre-existing or not, is based on the doctors discretion that you are seeing. Any second opinions or cancer treatments unfortunately would not be covered by a visitors insurance plan. For a comprehensive explanation of why, see: Pre-Existing Conditions and Visitors Insurance However, we do offer plans that provide coverage for an acute onset of a pre-existing condition. For more information, see: Acute Onset of Pre-Existing Conditions