Psychiatry is devoted to the comprehensive diagnosis, prevention, and treatment of mental disorders. These include various maladaptations related to mood, behavior, cognition, and perceptions. It plays a vital role in treating stress, anxiety, depression, and related cancer-induced side effects that interfere with the treatment and adversely impact the patients' quality of life. It keeps the cancer patients in good humor. Psychiatric treatment and psychotherapy are often imperative in managing cancer patients to ensure full compliance and a healthy outcome.