Are there different types of nipples?
Yes, there are several types of nipples, actually.
Nipples, as well as the shape and size of the mammary glands, vary from person to person. They can be large or small, pale or dark, different in shape (protruding, inverted, or flat), and pointing up or down.
According to doctors, most female breasts have protruding nipples that normally stick a few millimeters above the areola and a little further during a state of arousal.
In approximately 28–35 percent of female breasts, the nipples are flat or conical, and 10 percent have inverted nipples.
Interestingly, the same person can have two different types of nipples. This is normal.