Medical Tourism growing
Medical tourism, as defined by wikipedia, "is a term that has risen from the rapid growth of an industry where people from all around the world are traveling to other countries to obtain medical, dental, and surgical care while at the same time touring, vacationing, and fully experiencing the attractions of the countries that they are visiting".
For a lot of people, it's a cost-effective way of getting private medical care. Especially for those who have no medical insurance.
Countries from which medical tourists are coming from should think of medical tourism as a cry for help. How bad (or expensive) could it be that your people are looking elsewhere even for medical concerns?!
As for those who are even considering this option, I hope that you do your research before you commit to something (do remember the scandal of having to find an accutane attorney and that happened in our own shores!). Definitely, there will be people involved in this who have honorable intentions. However, it is also easy to see that there could also be people who have dubious intentions.
It's your body and your life. Keep it safe.