Information about the patient's individual symptoms and health status during cancer treatment and follow-up is currently obtained by the clinician as part of the communication with the patient. This approach is not systematic and cannot be used to monitor symptoms development over time. However, knowledge of health status is essential for assessing and improving well-being and rehabilitation in cancer care aiming the best possible outcome. Fewer symptoms may thus be an indication of whether supportive care has been effective, while the appearance of new symptoms may reflect recurrence in an early stage. Electronic registration of systemically obtained PRO data in clinical practice can be a method to improve the quality of the follow-up program .