The overall aim of this thesis was to characterize patient-physician communication in oncology care with focus on the content and quality of the consultations from the perspectives of patients, oncologists and observer. Further, the aim was to explore oncologists’ perceived barriers against psychosocial communication in out-patient consultations. Finally, the aim was to evaluate different methods for evaluating communication in this setting. Routine oncology out-patient consultations from two different hospitals were audio-recorded. After the consultations, patients and oncologists perceptions of the content and quality of the communication were assessed using a self-report questionnaire. A nation-wide survey was performed to assess oncologists’ perceived barriers against psychosocial communication. Finally, the audio-recorded consultations were used for evaluating inter-rater reliability and feasibility of two different communication analysis instruments. Patient-physician consultations in oncology care are focused on the physical aspects of disease and treatment, both in terms of how often these issues were discussed and in terms of the amount of time spent on discussing them. Psychosocial issues, such as the disease’s effects on patients’ emotional or social functioning, are not always discussed during consultations, and the time spent on such discussions is limited. When psychosocial issues are discussed during the medical consultations, they are most often patient-initiated. Reasons for why psychosocial aspects are seldom discussed during the medical consultations can be the barriers concerning this kind of communication perceived by a large majority (93%) of the oncologists. Barriers against psychosocial communication were identified at organizational levels (including guidelines, routines, and resources) and individual levels (including physicians’ knowledge and attitudes). Furthermore, this thesis shows that there are methods with high feasibility and reliability for evaluating the content of patient-physician communication, in large study samples in oncology care. The method (observation/self-report) and perspective (patient, physician, and observer) used when evaluating communication affects the results. This needs to be considered when choosing evaluation methods in intervention studies. There are reasons to continue to evaluate, promote and implement promising ways of achieving better communication in clinical practice. Research should focus on how to overcome barriers against psychosocial communication.