Tina Knowles wants women to stay on top of their mammogram appointments. In an interview with People, Knowles revealed she was diagnosed with stage 1 breast cancer in her left breast last July.

Tina Knowles, mother of Beyoncé and Solange Knowles, is opening up about a recent health issue. The author of a brand-new book, "Matriarch: A Memoir," Tina Knowles spoke with People about her recent breast cancer diagnosis and subsequent recovery in an interview published Tuesday.

Tina Knowles has long entertained the internet with her corny jokes, but there’s one thing she’s very serious about: mammograms. In an interview with People published on Tuesday, Knowles revealed that she was diagnosed with stage 1 breast cancer in her left breast.