medical tourism       
noun [ U ] mainly US uk/ˌmed.ɪ.kəl ˈtʊə.rɪ.zəm/ us/ˌmed.ɪ.kəl ˈtɔː.rɪ.zəm/ (UK usually health tourism)
 医疗旅游(指到国外接受治疗,特别是因为那里比自己国家便宜)
travel to a foreign country for medical treatment, especially because it is less expensive than in your own country
  Medical tourism companies are luring Americans abroad with surgery-vacation trips.  医疗旅游公司正以手术度假游吸引美国人出国。 
 He began to get interested in medical tourism after seeing a hospital in Bangkok featured on CBS News. 他在CBS新闻中看到曼谷一家医院的报道后,开始对医疗旅游产生了兴趣。 
 - More examples
 - Travel agencies specializing in medical tourism offer all-inclusive vacation/surgical packages.
 - Miami is becoming known more and more as a medical tourism destination.
 - Critics warn that limited malpractice laws in foreign companies and long travel times make medical tourism a risky choice.