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Cancer Explained

Kids & Teens

Cancer, explained for you

Cancer can feel scary and confusing. These pages explain it in plain, gentle words — whether you have cancer, or someone you love does. You can read them yourself, or with a grown-up. Every page has a “Read this to me” button, too.

Grown-ups: this section is written to be read by children and teens. It has no sign-ups, ads, or tracking. It never predicts what will happen to a specific person — those questions are always sent back to you and the care team. For your own guides, see the Childhood Cancer section.

Kids' Corner

Ages 6–12 · For kids who have cancer, or just want to understand it. Best read together with a grown-up.

When someone you love has cancer

Ages 6–12 · For kids when a parent, brother, or sister has cancer.

For Teens

Ages 13–17 · Straight talk for teens — whether it's your diagnosis or someone else's.

Hard words, made easy

A picture-simple dictionary of 44 cancer words — like tumor, chemo, and port — explained the way you’d tell a friend.

Open the word list

If you feel scared or sad and want to talk to someone, that’s okay and it’s brave. Tell a grown-up you trust. Grown-ups can also find help on our support resources page.