Background:
Patients with breast cancer often have to deal with severe drug side effects and psychological distress during cancer diagnose and cancer treatment. Anxiety is thepsychiatric problems encountered in breast cancer patients. alongside medical treatment, many breast cancer patients use forms of Complementary and Alternative Medicine (CAM) to manage the above side effects. This study aimed to determine the effect of yoga program on anxiety in breast cancer patients undergoing chemotherapy referred to Radiotherapy and Oncology Center of Golestan Hospital in Ahwaz.