The breast is at risk of quite a few benign and malignant problems. Probably the most frequent benign problems are puerperal mastitis, fibrocystic breast adjustments and mastalgia. Breast tissue starts to form in the fourth 7 days of fetal lifestyle. During the fetus, breast tissue develops alongside two "milk lines" https://grok.com/share/c2hhcmQtMw%3D%3D_21b4ddf4-c274-418a-a078-c9d2af4898ff