Psycho-oncology is a knowledge base field at the intersection of physical, psychological, social, and activity aspects of the cancer expertise for each patient and caregivers. Additionally called medical specialty medicine or Psychosocial medicine, researchers and practitioners within the field are involved with aspects of individuals expertise with cancer on the far side medical treatment, and across the cancer mechanical phenomenon, together with diagnosing, throughout treatment, transitioning to and throughout survivorship, and approaching the end-of-life.