The need for additional surgery after primary breast augmentation surgery is high, on order of 1 in 5 to 1 in 4 patients. Multiple factors account for this. Weighing down a breast with a silicone or saline breast implant may increase the chance for needing a breast lift down the road. Capsular contracture, or hardening of the breasts after breast enlargement surgery may require a revision depending on the severity of the problem. The rate of leakage and deflation also goes up with time, increasing the chances for implant removal. Patient request for style/size change, and biopsy are other reasons for additional procedures.