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 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.

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.