Medulloblastoma - Childhood: Risk Factors


ON THIS PAGE: You will find out more about the factors that increase the chance of developing medulloblastoma. To see other pages, use the menu on the side of your screen.


Doctors don’t know what causes most childhood tumors, including medulloblastoma. Medulloblastoma is more common in boys than in girls. It occurs most often in the first eight years of life, with about half occurring in children younger than six years old.

In rare situations, children with nevoid basal cell carcinoma syndrome (NBCCS), a hereditary condition also known as Gorlin syndrome, have an increased risk of developing medulloblastoma. People with NBCCS are more likely to develop various tumors.
