medical illustration of the function of stem cells in the human body

What should I be cautious about if I am considering a stem cell therapy?

High cost of treatment or hidden costs:

It is not customary for someone to pay to be in a clinical trial (other than perhaps travel and other personal expenses). Consider whether you should pay for a treatment that is unproven. Furthermore, ask about the costs  of emergency medical care if something goes wrong, particularly if you are outside your own country. Find out what costs your national program or health insurance provider will cover, in what circumstances and in what countries.