Breast augmentation is surgery to increase breast size, either due to lack of breast development or loss of tone and volume following weight loss or breastfeeding. Breast augmentation involves the implantation of prostheses. The implants will either be inserted under the glandular tissue or under the deeper pectoral muscle depending on the case. The surgeon’s preference and the patient’s requirements will determine the access route of the implant: either through an incision at the areola or at the breast crease. Breast implants are composed of different materials (the most commonly used are cohesive gel implants containing silicone) and can either be rounded, i.e., with a circular base, or anatomical, i.e., with a more anatomical teardrop shape. Surgery takes place under general anaesthesia.