Breast enlargement implants collapse when either saline or silicone that is contained within them leaks out through a broken valve (saline breast implants only), or a tear in the implant shell (both silicone and saline implants). Saline is reabsorbed rapidly, and a dramatic change in size will be noted by the patient within days. Silicone breast implants rupture may go undetected, may present with a slight change in shape from one breast to the other, or may have a more pronounced difference in size between the two breasts. Many rupture events go unexplained, but may be due to inherent defects in the implant with worsening over time. Known reasons for deflation consist of overfilling or underfilling saline breast implants, obvious causes such as undetected damage to the breast implants in surgery (tears, needle holes, etc.), trauma whether via accident, aggressive manipulation during intimate contact, or during mammography, the scar around the breast implant squeezing to the point of rupture (capsular contracture), attempted rupture of such contracture via closed capsulotomy. Consequences of saline rupture are cosmetic only. Many ill-effects have been attributed to silicone leak, however, in spite of opportunistic attempts at destroying scientific method of research as it applies to silicone breast implants, local inflammation and difficulty in extracting all of the leaked silicone gel has been the only real issue. Obviously, the treatment in such cases is implant removal and replacement.