The exact cause of CRF is multifactorial and can include:
Cancer Itself: The disease process can cause changes in the body that lead to fatigue. Cancer Treatments: Chemotherapy, radiation therapy, immunotherapy, and surgery can all contribute to fatigue. Anemia: Many cancer patients experience anemia, which can cause fatigue. Psychological Factors: Anxiety, depression, and stress related to the cancer diagnosis can also play a role. Nutritional Deficiencies: Poor appetite and weight loss can result in insufficient nutrient intake, leading to fatigue.