Breast implants undergo extensive testing to prove that they are safe and effective. Studies show that most patients do not experience any serious complications from this type of plastic surgery. However, in rare cases, complications may occur. Rippling or wrinkling is a side effect that occurs when wrinkles or creases form on the surface and these can be seen or felt by the patient. Sometimes visible edges can be seen beneath the skin. This problem can look most pronounced on the underarm area or when the patient is leaning over. Rippling will often be most visible on the bottom or sides of the breasts or on the cleavage as the tissues are thinnest in these areas.