1, theoretically, if your chest is not serious, you can take out the prosthesis about a week after breast augmentation. Can be taken out and filled with fat at the same time. That won't make any difference.
2. After the prosthesis is taken out, the original cavity of the prosthesis will be cleaned. It should be noted here that the cavity where the prosthesis is located is a new cavity that the human body does not have. If the cavity is full of fat, fat can't establish blood supply. Therefore, doctors in this cavity do not inject fat when doing the same work, and usually avoid this cavity and fill it in other layers.