Judy Blume revealed her battle with breast cancer on Wednesday in a blog post titled "!@#$% Happens."
The 74-year-old author of many popular young adult books - including "Are You There God? It's Me, Margaret" - received the diagnosis in early June.
"A visit to the radiologist on June 12 for a routine ultrasound (dense breast tissue) led to a core biopsy." The results showed the presence of invasive ductal carcinoma.
Blume wrote about trying to process the news: