Roya Shavaran - Department of education and psychology, Faculty of psychology, University of Isfahan, City Isfahan, Country Iran
Ladan Majidinia - Department of biology, Faculty of Genetic, University of Rasht, City Rasht, Country Iran
Nahid Akrami - Department of education and psychology, Faculty of psychology, University of Isfahan, City Isfahan, Country Iran

Psychosocial stress has profound effects on physical and mental health which are one of the effective factors on cancer’s treatment. In this review the significant role of a counselor/psychologist will be examine as a crucial part of these treatments. The counselor’s advice is necessary for the patient to be well informed about the procedure and have realistic expectations in order for them to be eligible for treatment. Furthermore, exposure to stressors or to the products of the physiological stress response has been associated with epigenetic changes which may influence tumor growth. Eventually, a psychological assessment is needed for patients by the counsellor during all phases of the treatment

Psychosocial stress, Epigenetic, Psychology treatment