And while I'm here:
'There are a number of potential side effects of chest binding that people should pay attention to and, if necessary, see a doctor for. If people bind their chests too tightly in ways that compress their ribs, they can experience chest pain and difficulty breathing. They may also experience back pain or difficulty participating in sports and other activities.
Binders that do not allow the skin to breathe can lead to rashes and skin breakdown, which may require medical attention. Binding too tightly can also lead to neurological symptoms, such as numbness.2
Depending on the type of binder used, it may, rarely, lead to gastrointestinal symptoms or damage to the ribs and shoulders.1 Individuals with large chests are more likely to experience skin breakdown and rashes in general, as well as with chest binding specifically. They may also be more likely to experience other symptoms, including pain.
Duration and frequency of binding also affect the likelihood of having symptoms. People who bind more often and for longer periods are more likely to experience binding-related issues. However, the vast majority of people who bind their chests regularly will experience symptoms at some point in their lives.2 '