Since the procedures are non-invasive, the patient can normally resume most or all of his or her daily activities within a relatively short period of time.

Try to find an expert surgeon who agrees with your views on beauty and will not suggest several operations over time.

The third disadvantage is that doctors are encouraged to perform surgery - even on patients for whom an operation is not at all necessary - because the equipment and surgical expertise is available.

However, Dr Cerf said he hoped that it would be possible at a later stage to monitor people without invasive surgery.

The doctors decided to operate on him for the tumor.