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There Are 8 Types of Nipples in the World
Supernumerary: Some people have extra, smaller nipples.
Bumpy: It's common to have bumps on the areola surrounding the nipple.
Puffy: The entire areola and nipple area looks like a small, raised mound on top of the breast.
Inverted: The nipple retracts inwards. Sometimes, you can use your fingers to bring it out.
Unilateral inverted: One nipple is raised, the other is inverted.
Flat: The entire nipple is flat and blends into the areola.
Hairy: Stray, dark hairs growing out of the areola area are normal. They might be fine or coarse.
Protruding: This refers to nipples that are raised a few millimeters above the surface of the areola and point outwards.