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Why Does Bra Cause Back Pain?

Published in Bra Fit Back Pain 3 mins read

Bras can cause back pain primarily when they don't fit correctly or provide inadequate support, leading to poor posture.

How an Ill-Fitting Bra Impacts Your Back

A bra's main purpose is to provide support. However, when a bra is either too loose or too tight, it fails to perform this function effectively. The lack of proper support forces your body, particularly your upper back, neck, and shoulders, to compensate.

According to the reference, as your posture in your neck and shoulders shift forward due to the lack of support from the bra, you will experience upper back pain, neck pain, and shoulder pain. This forward shift occurs because the muscles in your back and shoulders strain to support the weight of the breasts that the bra isn't adequately lifting.

Common Issues and Effects

  • Too Loose: A bra that is too loose won't lift and support the breasts sufficiently. This puts more stress on the upper back and shoulder muscles.
  • Too Tight: A bra that is too tight can dig into the skin, restrict movement, and place undue pressure on certain areas, also leading to discomfort and pain.
  • Poor Posture: The primary consequence of inadequate support is a change in posture. The body naturally slumps or rounds the shoulders forward to manage the unsupported weight, leading to the forward shift mentioned earlier.
  • Uneven Weight Distribution: An ill-fitting bra can distribute weight unevenly, straining one side of the back more than the other.

Factors Contributing to Bra-Related Pain

Several factors related to bra fit and style can contribute to back pain:

  • Band Size: The band provides most of the support (about 80%). If the band is too loose, the straps take on too much weight, and the bra rides up, offering no real support.
  • Cup Size: Cups that are too small can cause spillage and offer inadequate coverage and support. Cups that are too large don't hold the breasts firmly, allowing them to sag.
  • Strap Adjustment: While straps only provide about 20% of the support, if they are too tight, they can dig into the shoulders and neck, causing pain. If they are too loose, they provide no lift.
  • Bra Style: Different styles offer varying levels of support. For larger breasts or during physical activity, a bra designed for high support is crucial.

Finding Relief: The Importance of Fit

The most effective solution to prevent or alleviate bra-related back pain is ensuring a proper fit. Getting professionally measured can make a significant difference.

  • Check the Band: It should be firm but comfortable, sitting horizontally across your back. You should be able to fit two fingers underneath it.
  • Check the Cups: Your breasts should fit entirely within the cups without spilling over or having gaps.
  • Check the Straps: They should stay in place without digging into your shoulders.

Making sure your bra provides adequate support prevents the negative posture changes that lead to upper back, neck, and shoulder pain.

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