The Princess of Wales announced on Friday March 22 that she had cancer. She has started a treatment of “preventive chemotherapy” to fight against the disease.
The aim is to “reduce the risk of cancer returning and spreading” in the body via the spread of cancer cells in the blood. Chemotherapy is intended to kill cancer cells, without distinguishing them from healthy, useful ones, such as white blood cells. It can take weeks or even months to recover from treatment.