The old prosthesis and must be discarded even though they are much cheaper, were composed of silicone low cohesiveness and risked a possible erosion of the envelope to cause a leakage of silicone outside the producing prosthesis called encapsulation. In the patients using these prostheses are advised to change after 10 to 15 years to prevent possible hazards such as leaking silicone or silicone, a reaction to silicone that is interpreted by the body as a foreign body and provokes a slight inflammation that produces granulates

The change of the old prosthesis, in most cases and if no other complications have arisen, is a simple operation performed under local anesthesia and does not need a specific postoperative.

Currently, most prostheses used are silicone gel high cohesiveness without risk of deformation or recreation and even avoid the so-called capsular withdrawal that was causing the chest hard and rounded noticing. The duration of the current prosthesis is estimated at about fifty, so almost be considered a lifetime.

Potential negative effects of health implants have never been found, the prostheses are inert and cause little adverse reactions and allow mammograms and medical examinations normally.

In any case, the scientific advances that are emerging can leave silicone implants obsolete soon. The latest development is the use of stem cells from the patient herself for breast augmentation. A procedure is already under way, although in clinical trials in breast reconstruction to patients with fat and stem cells, a procedure that can be generalized in a few years.