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Tina Knowles, mother of Beyoncé and Solange, opened up about her recent journey with breast cancer in an emotional interview with Gayle King for CBS.

The 71-year-old revealed she was diagnosed with Stage 1 breast cancer in her left breast after doctors detected two tumors during a delayed mammogram. Knowles explained that she missed her regular screening during the COVID-19 pandemic and didn’t get it rescheduled until last year. During that appointment, doctors found two tumors—one was benign, but the other tested positive for Stage 1 cancer.

Her story is a powerful reminder of the importance of regular screenings. Breast cancer remains the most commonly diagnosed cancer among women worldwide. In countries like the US, one in eight women is diagnosed with breast cancer within their lifetime.

Find out which other celebrities have battled breast cancer in the following gallery.

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The US actress known for starring in the show 'Boy Meets World,' recently revealed that she has been diagnosed with early-stage breast cancer. The 43-year-old shared the news on an August 19 episode of her podcast, 'Pod Meets World.' “It is very, very, very early. It's technically stage zero," Fishel explained. “I was diagnosed with high-grade DCIS with micro invasion. And I'm going to be fine, I'm having surgery to remove it.” DCIS stands for ductal carcinoma in situ, which is a kind of breast cancer. Fishel went on to explain that the only reason she caught the disease so early was that she got a text reminder to make her yearly mammogram appointment.

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In 2023, Sarah Ferguson revealed that she was diagnosed with an "early form" of breast cancer. She underwent a single mastectomy and reconstructive surgery and was given the all-clear. In January 2024, she was diagnosed with skin cancer, but has since recovered from that too.

▲The actress discovered that she had breast cancer in 2008 and underwent a double mastectomy.

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The Australian singer was diagnosed with breast cancer in 2005. Her treatment lasted three years and she was subject to a partial mastectomy, chemotherapy, and radiotherapy.

▲The creator of 'Veep' revealed her diagnosis in 2017 on social media. She went through chemo and a double mastectomy, and was declared cancer-free in late 2018.

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The 'Sex and the City' actress discovered she had the disease in 2006. It was a small tumor in her right breast. Treatment included surgery and radiotherapy.

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In 2015, the actress and wife of Tom Hanks told People magazine that she underwent a double mastectomy.

▲The French actress and model was diagnosed in 1983 and refused treatment. She believed that her destiny was to die, but a friend convinced her to get treated.

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The late actress was told she had breast cancer at age 73. While she said that the treatment was worse than the disease itself, she did end up making a full recovery. Smith died at age 89 in September 2024 and, while the cause of death has not been confirmed, she passed away peacefully surrounded by family and friends, according to a statement released by her publicist.

▲The American singer was diagnosed with breast cancer in 2006 and undertook surgical intervention and radiotherapy.

▲The singer confessed that she had never encountered anything as powerful as breast cancer.

▲The comedian was diagnosed with breast cancer in 2011 and had a double mastectomy to avoid chances of a recurrence.

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After years of remission, the 'Beverly Hills, 90210' and 'Charmed' actress revealed on February 4, 2020 that her breast cancer has returned at stage four. Sadly, she passed away in 2024. Doherty was first diagnosed with breast cancer in 2015.

▲The TV host says breast cancer was nothing more than a chapter in her life story, but it will never be her life story.

▲"Hello, I have cancer," said the comedian in a performance that happened just days after her diagnosis.

▲The actress and activist was one of the first famous women to speak publicly about having breast cancer, this back in 1972. She died in 2014 from unrelated causes.

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The legend from 'Grease' discovered the disease in 1992. She fought back for 30 years, before passing away on August 8, 2022, at the age of 73.

▲The Oscar-winning actress discovered a small tumor in 2010. Her cancer was non-invasive and she needed surgery, but didn't have to undergo chemotherapy or radiation. She was diagnosed with non-Hodgkin lymphoma in 2022 and had to undergo chemo, but happily announced a few months later that she was in remission.

▲The journalist and activist was diagnosed in 1986 and treated successfully.

▲The actress, writer, and activist survived breast cancer and died in 2014 of unrelated causes.

▲The TV presenter discovered that she had breast cancer when she was undergoing fertility treatments in 2011. She ended up having double mastectomy surgery.

▲The actress said that surviving breast cancer made her reevaluate her priorities in life.

▲The Sonic Youth singer encountered breast cancer while getting divorced. She recounts the experience in her memoir, 'Girl in a Band.'

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The actress underwent a double mastectomy in 2012 after being diagnosed with breast cancer.

▲The actress was diagnosed with breast cancer in 2002 and underwent a lumpectomy.

▲Smith's 'Charlie's Angels' co-star battled breast cancer in 1987 and 1989.

▲The singer was diagnosed with the disease twice and underwent a double mastectomy.

▲The singer and actress said that she gained a new life after recovering from breast cancer.

▲The actress was diagnosed with breast cancer in 2010.

▲The former First Lady of the United States was diagnosed with breast cancer and treated in 1987. She died of congestive heart failure in 2016, at the age of 94.

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Breast cancer affects all genders. Peter Criss of Kiss revealed that he was diagnosed with breast cancer in 2008, but ended up treating it before it could spread.