They come in different shapes, sizes, colors, directions, and more.

Some of the most common nipple variations include:

Bumpy. Small bumps around the areolae, called Montgomery glands, are more noticeable on some nipples.

Everted. Everted nipples are erect, standing up away from the areolae even when they’re not being stimulated.

Inverted. Inverted nipples retract inward instead of standing out like erect nipples.

Flat. Flat nipples remain at the level of the areolae, though they may stand up with stimulation.

Hairy. It’s totally normal to have hair growing around your nipples, and some people have more hair than others.

Protruding. Protruding nipples stand erect, further than everted nipples, even without stimulation.

Puffy. Both the areola and the nipple make up a raised mound.

Supernumerary. This is just a fancy way of saying you have an extra nipple — which, in case you’re wondering, is completely normal.

Unilateral inverted. These nipples like to mix it up, as one is inverted and the other is everted.