The process is different for every person and every category. After the initial enquiry phone call or email has been made, and a formal quote for treatment received, the next step is the consultation process, to check whether a patient is a good candidate for the procedure(s) requested.
A consultation is also a good opportunity to learn about anything the surgeon requires you to do beforehand, such as lose weight or take certain vitamins to help the recovery process. With dentistry for example, it’s normal that digital photos and x-rays are all the consultant sees until the patient arrives and pictures don’t always show exactly what is going on, so a pre-consultation process with a local surgeon will not only help provide extra information to the surgeon abroad but make the patient's consultation more accurate.