Cancer is increasingly characterised in the literature as a disease that has a significant impact not only on the patient but also on their families (Hughes, Closs, & Clark, 2009; Pitceathly & Maguire, 2003). When a family member is facing cancer, the family system is confronted with a new situation, requiring them to adapt (Kotkamp-Mothes, Slawinsky, Hindermann, & Strauss, 2005). Since cancer survivorship is increasing (DeSantis et al., 2014), a growing number of families will have to learn to cope with cancer. Thus, the long-term changes that cancer brings both on the individual and the family are of increasing importance as they affect more people. Changes in the Family There are a number of changes that occur in a family when a member is diagnosed with cancer. The meta-analysis of Zabalegui, Sanchez, Sanchez, and Juando (2005) showed that the diagnosis and treatment of cancer results in changes in the patient's course of life, daily activities, work, relationships, and family roles. Additionally, there is evidence that the condition of patients during cancer treatment affects many areas of everyday life, such as their family life and the way they communicate (Moradian, Aledavood, & Tabatabaee, 2012). Some of these changes could be considered positive and adaptive while others negative and maladaptive. As a result of traumatic events (e.g. accidents, life-changing diagnosis), people often experience posttraumatic growth. That means they experience improvements in the following five areas: new possibilities, personal strength, spiritual change, appreciation of life, and relating to others (Tedeschi & Calhoun, 1996). The latter refers to the improvement of existing relationships. Patients with advanced colorectal cancer and their caregivers reported experiencing positive changes, such as closer relationships and more empathy for others, clearer life priorities, a greater appreciation of life and increased faith (Mosher et al., 2017). Other studies report improved communication between family members (Kotkamp-Mothes et al., 2005) and an increased involvement of the individual with cancer in family matters (Chung & Hwang, 2012). Additionally, the disruption of past dysfunctional daily routines and family roles has been reported (Buchbinder, Longhofer, & McCue, 2009). This possibly explains the increased involvement of the member with cancer in family matters, as more functioning family roles would benefit the involvement of all members. Tedeschi and Calhoun (1996) have suggested that cancer could be an experience of post-traumatic growth. At the same time, the negative changes in the family should not be minimised. Individuals with cancer have reported that their family is affected as much as they are (Lee & Bell, 2011). A cancer diagnosis can have a negative impact on the rhythm of everyday life, future plans of the family (Woźniak & Iżycki, 2014) and on the change in family roles (Given, Given, & Kozachik, 2001). According to a qualitative meta-analysis (Boehmer & Clark, 2001), both the individual with cancer an...