Lymphoma is a cancer of the lymphatic system in children that often shows as painless swollen lymph nodes, fever, fatigue, night sweats and unexplained weight loss. Causes can include genetic changes and immune system factors. Early diagnosis with blood tests and imaging leads to tailored treatment like chemotherapy, immunotherapy or radiation. With expert care from Dr Nandini Hazarika, families receive compassionate guidance for better outcomes and long-term support.