Should your nipples are newly inverted, you need to see your medical professional. They could be an indication of mastitis, mammary duct ectasia, or an abscess less than your areola. ...there's no health-related explanation to use a bra, so the decision is yours, based on your own personal ease and https://grok.com/share/c2hhcmQtMw%3D%3D_5ad6450c-533d-442c-a09c-9f7bce1babfb