If your child is diagnosed with this condition, avoid prodding or pushing on the child's belly area, and use care during bathing and handling to avoid injury to the tumor site.

The first step in treatment is to stage the tumor. Staging helps doctors determine how far the cancer has spread and to plan for the best treatment. Surgery to remove the tumor is scheduled as soon as possible. Surrounding tissues and organs may also need to be removed if the tumor has spread.

Radiation therapy and chemotherapy will often be started after surgery, depending on the stage of the tumor.

Children whose tumor has not spread have a 90% cure rate with appropriate treatment.

The tumor may become quite large, but usually remains self-enclosed. Spread of the tumor to the lungs, liver, bone, or brain is the most worrisome complication.

High blood pressure and kidney damage may occur as the result of the tumor or its treatment.

Removal of Wilms tumor from both kidneys may affect kidney function.

Call your health care provider if you discover a lump in your child's abdomen, blood in the urine, or other symptoms of Wilms tumor.

Call your health care provider if your child is being treated for this condition and symptoms get worse or new symptoms develop, particularly cough, chest pain, weight loss, or persistent fevers.