求助：爸妈来美国探亲，要买保险吗？

我爸妈即将来美国探亲。我妈妈身体不太好，我在考虑：是不是应该给她在美国买保险？请问谁有这方面的经验可以分享？多谢！！！

It is better to have health insurance. However, it would be very very expensive.