Breast inversion braces work for physiological breast inversion, but they are ineffective for breast inversion caused by diseases. 1. Physiological breast inversion: mainly refers to congenital nipple inversion. This situation can be treated by using orthodontic devices, and the correction time will take more than three months before there will be obvious results. 2. Disease-induced breast inversion: If breast inversion is caused by mastitis or breast cancer, you need to go to the plastic surgery department or breast surgery department of regular hospitals for consultation, and if the nipple protrusion is not obvious after anti-infection treatment or radical surgery for breast cancer, you can use breast braces to assist in the treatment. If you are not sure whether breast inversion is physiological or hereditary, it is recommended to go to the hospital as soon as possible for examination and evaluation by a specialized doctor.