Can it be cause due to any accident or pressure on the chest
I have seen this only once in over 30 years of practice, and that patient was not aware of it - found out when changing implant size. For an implant to flip over its edge, so the back is in front, the capsule must be quite large. It is possible for the capsule to enlarge from pressure, or from trauma such as a car accident. A surgeon may be able to manipulate the implant back into the correct position without opening the scar.