Abstract : Over the past 20 years, the number of new cancer diagnoses has risen steadily, partly due to the aging of the population. In 2021, 74,998 new diagnoses were recorded in Belgium. At the same time, improved screening techniques and advances in oncology treatments have increased patient survival. As a result, the prevalence of cancer has risen: 4 out of every 100 Belgians are currently living with cancer. In addition to the symptoms caused by the disease, patients have to cope with the side effects of treatments. Quality of life is becoming essential in the care of these patients, and this requires better communication, quality information, and the implementation of appropriate preventive and therapeutic measures. Sexual health is an integral part of overall health, well-being, and quality of life. It must therefore be assessed and integrated into patient care throughout the entire course of treatment.