Capsular contracture is the body’s reaction to the presence of a breast implant. When an implant is inserted, the body naturally forms a fibrous capsule around it. This capsule is normally thin and supple, but in some cases it can thicken and tighten, causing pain and deformity of the breast.
Capsular contracture is classified into four grades according to the Baker classification:
- Grade I: the breast is soft and looks natural
- Grade II: the breast is slightly firm but looks natural
- Grade III: the breast is firm and visibly distorted
- Grade IV: the breast is hard, painful and severely distorted


