This May will be a decade since Alfonso Dacasa overcame a non-Hodgkin's lymphoma. A note in his medical history has become a kind of alarm that jumps every time he crosses the door of a financial institution to ask for a loan or try to take out medical insurance.

The right to be forgotten in oncology was introduced into the public debate in Spain just over a year ago. In the entity that fights against leukemia they began to inquire about the subject and the first thing they found was that there was no regulation in Spain in this regard.