A breast implant is a prosthesis used to alter the size and shape of a woman’s breasts (known as breast augmentation, breast enlargement, mammoplasty enlargement, augmentation mammoplasty) for cosmetic reasons, to reconstruct the breast, or as an aspect of male-to-female sex reassignment surgery. Pectoral implants are a related device used in cosmetic and reconstructive procedures of the male chest wall.
A breast tissue expander is a temporary breast implant used during staged breast reconstruction procedures. According to the Indian Society of Plastic Surgeons, breast augmentation is the most commonly performed cosmetic surgical procedure in the India.