The inverted nipple was reported more than 100 years ago, and a number of techniques have been introduced thereafter for correction of this anomaly. Most of these techniques have some disadvantages. These include problems resulting from division of lactiferous ducts, fibrous connective tissue, and smooth muscles, as well as those related to deformity of the nipple and areola, loss of sensation in the nipple, and the surgical scar.
Therefore we tried to add the bulkiness under the nipple and to lengthen without division of lactiferous duct. We applied 13 inverted nipples in 8 patients and followed up for 6 months to 20 months. We designed the bilateral Z-plasty or modified bilateral Z-plasty on nipple-areolar junction. We elevated the Z-plasty flaps and crossed these flaps without division of lactiferous duct. 
We present in this paper a new technique that produced favorable results in the correction of any type inverted nipple through the use of a bilateral Z-plasty or modified bilateral Z-plasty on nipple-areolar junction.