We purchased travel insurance before our trip to Italy and we almost used it. Be aware that they often have pre-existing condition clauses that may make the insurance worth little if you have a medical condition.

Often the companies will wave the pre-existing condition clause if you purchase the insurance within a short period of time (one or two weeks) from the time you put down your first payment and/or deposit. The terms vary so become familiar before you pay anything.

Good traveling, Paul near Seattle