Beyonce and her sister Solange Knowles tested negative for the mutated BRCA2 gene according to their father Matthew Knowles.
He revealed that his daughters had taken the test after revealing earlier this week that he had been diagnosed with breast cancer.
The BRCA2 gene is linked to a higher risk of breast cancer as well as other cancers.
Knowles said his daughters were lucky not to inherit the gene mutation while discussing his breast cancer diagnosis on TMZ Live on Wednesday.
The 67-year-old spoke about the impact that his breast cancer diagnosis has had on his life
The 67-year-old told Strahan he went to his doctors earlier this year after noticing several times a spot of blood on his shirts.
He said: “I told my wife, and she says, ‘You know, I saw a dot of blood on the sheets,’ so I immediately went to my doctor. I got a mammogram, and then it was very clear that I had breast cancer.”
Knowles revealed that after the diagnosis and surgery in July he began questioning himself and then decided to speak out to create awareness and ensure that men affected by the condition don’t feel embarrassed and prevent them getting treatment.
He said: “Of all the things I could get, why would I get this?“ he said: “From a man’s perspective, I’m thinking, ‘Why me?’
“I learned again that the numbers that we have for men on breast cancer are not adequate because we don’t have enough men that come forward, that take the exam. I’m hoping by me coming here today, speaking out, letting folks know that you can survive this, but it has to be early detection. And I can’t overemphasize the word early.”
Breast cancer is relatively rare in men.
According to America’s National Breast Cancer Foundation fewer than 1% of patients with the disease are men, with most of those being between the ages of 60 and 70. However the mortality rate for men is higher than women.
Knowles added that he now has to be more vigilant with his medical testing.
“Constant mammograms, constant prostate exams, constant MRIs for the rest of my life.”, he said. “It’s genetics. It also means that my kids have a higher chance, a higher risk. Even my grandkids have a higher risk. And they handled it as they should. They went and got the test.”
Knowles managed Beyoncé for much of her career, including her time in Destiny’s Child. Their professional relationship ended in 2011, the same year Mathew finalized his divorce from Solange and Beyoncé’s mother, Tina Knowles.