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A 33-year-old member asked:

Is it true that if you wear a bra while you are sleeping it will cause breast cancer?

1 doctor answer5 doctors weighed in
Dr. Wendell Goins
General Surgery 42 years experience
No: There are no studies that suggest wearing a bra to bed is assoc with increased risk of breast cancer.
Dr. Ed Friedlander
Pathology 44 years experience
This was actually made up by an anti-brassiere militant. The world is full of crazies.
Apr 29, 2013

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A 45-year-old member asked:

I wear a bra all day and all night when I am sleeping, could this cause breast cancer?

1 doctor answer2 doctors weighed in
Dr. Robert Uyeda
General Surgery 45 years experience
Choice of: Garments have not been shown to cause breast cancer. In a large breast, early detection could be a problem, however. So have your screening tests performed according to prescribed schedule.
A 41-year-old member asked:

I have always heard that sleeping with a bra on can cause breast cancer, is this true?

4 doctor answers8 doctors weighed in
Dr. Lonna Larsh
Family Medicine 30 years experience
No: It is not true that sleeping with a bra on causes breast cancer. It's good for your breasts to have good circulation, like all parts of your body, so wear a bra that fits well and does not bind you anywhere.
A 45-year-old member asked:

Has it been determined that sleeping in a padded bra causes breast cancer?

1 doctor answer4 doctors weighed in
Dr. Paxton Daniel
Radiology 39 years experience
No: This is not a cause of breast cancer.
India
A 29-year-old female asked:

How to ban breast cancer? will large breast cause it?

1 doctor answer3 doctors weighed in
Dr. Myron Arlen
Surgical Oncology 64 years experience
No size correlation: Other than for the 5-10 % of women with genetic mutations, breast cancer is derived from exogenous sources. The MMTV virus and other viruses such as EBV have a strong association . These viral infections into mucosal cells of the breast cant be controlled by diet or exposure. When the virus enters the duct epithelium it causes a transformation in WNT-1 gene regardless of breast size
A 21-year-old member asked:

Will you get breast cancer if you wear a bra to bed?

1 doctor answer3 doctors weighed in
Dr. Devon Webster
Medical Oncology 22 years experience
No: It is a myth that wearing a bra to bed, wearing an underwire bra, or wearing a bra that's too tight causes breast cancer. I wish it was that easy!

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Last updated Dec 9, 2015

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