NATRELLE® 410 X-Style and L-Style Breast Implants Continued Access Study

Inclusion Criteria: For entry in this study, participants must have either been enrolled in the 410 CA Clinical Study or 410 CARE Clinical Study under the inclusion criteria below and received NATRELLE® 410 Highly Cohesive Anatomically Shaped Silicone-Filled X- or L-Style Breast Implants in 1 or both breasts; or be planning to be implanted with NATRELLE® 410 Highly Cohesive Anatomically Shaped Silicone-Filled X- or L-Style Breast Implants in 1 or both breasts and meet the inclusion criteria listed below: * Female, age 18 or older (age 22 or older for breast augmentation participants who are implanted under Protocol 410CAXL-001) * Present with 1 or more of the following conditions: * Primary breast augmentation (i.e., no previous breast implant surgery) indicated for participant dissatisfaction with size or shape of breast (e.g., mammary hypoplasia), asymmetry, ptosis, or aplasia * Primary breast reconstruction (i.e., no previous breast implant surgery other than implantation of tissue expanders or contralateral augmentation for asymmetry) indicated, in the affected breast, for mastectomy for cancer, prophylactic mastectomy, or breast trauma, (resulting in mastectomy) and for the unaffected breast, contralateral asymmetry (may be performed on the date of the mastectomy or the date when permanent implants are placed in the reconstructed breast) * Breast implant revision surgery (i.e., removal and replacement of breast implants) indicated for previous augmentation or re…