An inverted nipple refers to nipple shape and is a nipple that, instead of pointing outward, is retracted into the tits and sometimes cannot be seen. In some cases, the nipple will be temporarily uninverted if stimulated, but in others, the inversion is permanent. Some women have one nipple that is inverted and one that is not. Nipple pumping is another means by which to temporarily get the nipple out of it's inverted state. Methods to cause inverted nipples to portract include:
- Plastic surgery of the nipple(s), which risks her capacity to lactate as well as might turn her nipples numb for sensations.
- Piercing of the inverted nipple(s) while erected outside. The piercing will prevent the nipple to turn back inside and over the time loosen the nipple tissue
- Frequent usage of a nipple pump.