Breast development has a great impact on the psychology of modern women. In fact, many congenital breast dysplasia and even deformities can be improved by plastic surgery. Common congenital breast deformities include Poland’s syndrome, hypoplastic breasts, multiple breasts, asymmetric breast development and nipple depression. Poland’s Syndrome Poland’s syndrome is a congenital malformation that includes multiple tissue anomalies, most often manifested by abnormal development of one side of the chest, including the lack of pectoralis major muscle, breast dysplasia, small nipple areola development, and in some cases, abnormal rib development. This syndrome seriously affects the appearance of the breasts and the normal development of the female psyche. Treatment: Breast reconstruction on the affected side can be done by tissue expansion followed by replacement with a permanent prosthesis, combined with autologous fat injection transplantation as appropriate; ipsilateral latissimus dorsi muscle transfer plus prosthesis can also be used. The nipple and areola can also be reconstructed surgically. Breast dysplasia that is not Poland’s syndrome Breast dysplasia that is not Poland’s syndrome can be bilateral or unilateral (i.e., asymmetrical breast development), but the pectoralis major muscle is usually well developed. Treatment: This can be done by direct placement of implants or by tissue expansion followed by placement of implants. If there is more fat tissue in other parts of the body, you can also use autologous fat injection for breast augmentation, which is simple and kills two birds with one stone. Multi-breast Multi-breast, also known as polymastia, is a condition in which a pair of normally positioned breasts and nipple areolas are followed by extra breast development on the line from the armpit to the pubic bone, with some having only nipple structures. Treatment: The excess breast and nipple are usually removed surgically, and the excised tissue needs to be sent for pathological examination after surgery to avoid the occurrence of tumors. Nipple depression Nipple depression is a very common congenital malformation that is due to hypoplastic breast ducts that are too short and cause pulling nipple depression. It is clinically classified as mild, moderate or severe. Treatment: In mild cases, the nipple can be pulled out by hand and remain prominent for a period of time; in moderate cases, the nipple can be pulled out by hand, but the sunken state is immediately restored by releasing the hand; in severe cases, the nipple cannot be pulled out by hand at all. Mild cases can be treated by conservative treatment methods such as regular hand pulling or regular pulling with external traction devices from puberty. Moderate and severe cases require surgery for improvement. For patients who need to breastfeed, correction methods that do not interfere with breastfeeding can be used, but for severe cases the correction is slightly less effective in appearance. For patients who do not need to breastfeed, the correction method of cutting the milk ducts can be used.