As we all know, medical expenses in the United States are expensive.This means that if you go to the United States for a short-term visit, travel or visit relatives without insurance, you will be "streaking."If you are lucky, nothing will happen.If you are unlucky, it is the kind of news that you often see on the Internet, and the medical expenses can be hundreds of thousands at every turn.Therefore, whether it is for oneself or for relatives and friends, buying insurance is a responsible performance.