Symptom management and palliative care in oncology patients are critical to improving patients’ quality of life. Symptoms such as pain, nausea, fatigue and psychological stress are common during cancer treatment and these symptoms need to be managed effectively. Symptom management may involve a combination of pharmacological and non-pharmacological methods. Palliative care aims not only to relieve symptoms but also to meet the emotional, social and spiritual needs of patients and their families. Palliative care started at an early stage allows patients to have a better quality of life and alleviates the difficulties that occur in the later stages of the disease. Oncological rehabilitation focuses on the physical and psychosocial recovery of patients in the post-treatment period. Rehabilitation programs include exercise, nutritional counseling and psychological support to increase muscle strength, improve mobility and enable patients to return to daily living activities. This holistic approach helps oncology patients better manage the treatment process and improve their quality of life.