Unfinished nursing care (UNC), as the care required by patients that delayed or not delivered, has been investigated mainly from the perspective of nurses, while little is still known from the side of patients. Some studies have involved patients to measure which elements of care are mostly unfinished (e.g., mouth care), whereas a few studies have investigated the reasons for UNC as perceived by them. Their involvement in understanding the reasons for UNC is crucial to advance the knowledge and co-develop possible strategies to prevent or minimize UNC.