Tina Knowles has confessed that she has been privately struggling with breast cancer for the past year—just one month after it was revealed that her Galveston, TX, beach house was being demolished.

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 shares how a missed mammogram may have led to a delayed detection of breast cancer, and opens up about the support from her daughters, Beyoncé and Solange, niece Angie Beyincé, and bonus daughter Kelly Rowland.