Underwired bras have been used for decades, but questions about their safety and potential impact on breast health continue to circulate. One common concern is whether wearing bras with wires can increase the risk of breast cancer. Health experts have repeatedly clarified that there is no scientific evidence linking underwired bras to breast cancer. Nutritionist Nmami Agarwal recently addressed these concerns in a social media post, explaining that women can choose wired or non-wired bras based on their comfort and personal preferences.

Agarwal explained that the belief that underwired bras cause cancer is a myth unsupported by scientific evidence. Dr Therese Bevers, medical director of the Lyda Hill Cancer Prevention Center at MD Anderson Cancer Center, has also stated that there is no evidence to support a connection between underwire bras and breast cancer. Although breast cancer can develop in different areas of the breast, pressure from a bra wire has not been established as a cause of the disease.

Comfort and proper fit remain important considerations when choosing a bra. An incorrectly fitted bra may cause discomfort, pressure, skin irritation or pain, particularly when the underwire digs into the skin or presses against breast tissue. A well-fitting bra should sit comfortably against the body, with the wire following the natural crease beneath the breast without pinching or poking. Women experiencing persistent discomfort may benefit from checking their bra size or choosing a different style.

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Another common misconception is that not wearing a bra causes breasts to sag. Experts explain that changes in breast shape over time are influenced by factors such as ageing, gravity and changes in the skin and supporting tissues. Wearing a bra or choosing not to wear one has not been established as a direct cause of breast sagging. Bras primarily provide support and can improve comfort, particularly during physical activity, rather than prevent all natural changes in breast shape.

Agarwal also addressed concerns about bra colour, explaining that wearing black bras does not cause cancer. There is no scientific evidence that the colour of a bra increases breast cancer risk. Similarly, wearing two bras simultaneously does not necessarily provide better support and may create unnecessary discomfort. Choosing appropriate clothing and undergarments should therefore depend on comfort, fit and individual needs rather than common health myths.

Experts advise women to select underwired or non-wired bras according to their preferences, provided the garment fits properly and does not cause discomfort. There is no general medical recommendation to avoid underwired bras to prevent breast cancer. However, anyone experiencing persistent breast pain, a new lump, unusual nipple discharge or other unexplained changes should seek medical advice rather than assume the symptoms are caused by their bra. Separating evidence-based health information from common misconceptions can help women make informed decisions about their everyday comfort and breast health.

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