The formation of a scar tissue “capsule” around any type of implant is an expected part of the healing process. The body immediately responds to any foreign body it finds inside by forming a barrier of scar tissue around it to isolate it. In the case of breast implants, this is usually a positive thing, as the capsule holds the implants in place and prevents them from slipping. However, in certain individuals, the capsule of scar tissue becomes unusually hard and begins to contract around the implant. This is called bilateral capsular separation. In these cases, a capsulotomy or capsulectomy with implant removal or a change in insertion plane is a necessary follow-up procedure.