In the menstrual cycle, the breasts are enlarged by premenstrual water retention and short term progress as motivated by switching hormone stages.[55] Breast tissue begins to variety in the fourth 7 days of fetal everyday living. During the fetus, breast tissue develops together two "milk traces" that start out for https://grok.com/share/c2hhcmQtMw%3D%3D_21b4ddf4-c274-418a-a078-c9d2af4898ff