Symptoms

Signs and symptoms of Wilms' tumor vary widely, and some children don't show any obvious signs. But most children with Wilms' tumor experience one or more of these signs and symptoms:

• An abdominal mass you can feel
• Abdominal swelling
• Abdominal pain

Other signs and symptoms may include:

• Fever
• Blood in the urine
• Nausea or vomiting or both
• Constipation
• Loss of appetite
• Shortness of breath
• High blood pressure

When to see a doctor

Make an appointment with your child's doctor if you notice any signs or symptoms that worry you. Wilms' tumor is rare, so it's much more likely that something else is causing symptoms, but it's important to check out any concerns.