A long time ago, doctors didn't know how to treat kids with cancer. A lot of kids died. Now, doctors know more about treating kids with cancer, so more kids are surviving. But, doctors are finding out that when kids who have treatment like surgery, radiation, or chemotherapy for cancer get older, some of them can have new problems. The new problems can come from the cancer or its treatments. For example, they can have other cancers and heart problems. These problems are called late effects. Kids who survive cancer will have to watch for these problems for the rest of their lives. Doctors are trying to figure out why people have these problems. This way, in the future, cancer survivors won't have to worry about them.

• what kind of cancer you had
• how old you were when you were told you had cancer and when you were treated
• the type of treatment you had