Is it normal to have openings at the end of your nipples?

It is normal for some individuals to have small openings at the ends of their nipples. These openings are known as lactiferous ducts, and they serve as the passageways through which milk flows out of the breast during breastfeeding. However, these ducts only become functional with a woman becomes pregnant and starts to produce milk. It is recommended to consult a healthcare professional if you have any concerns or notice any changes in the appearance of your nipples.