Wilms Tumor is a rare kidney cancer that mainly affects young children, often around ages 3–4, and may appear as a painless abdominal lump or swelling noticed by parents. Other signs can include belly pain, blood in urine, fever, high blood pressure and loss of appetite. Early diagnosis through imaging like ultrasound or CT and prompt medical care help guide effective treatment plans. With expert evaluation by Dr Nandini Hazarika, families gain clarity on symptoms, risks and diagnosis for timely care and better outcomes.