Breast capsular contracture is a complication following breast implant surgery, where scar tissue (capsule) forms tightly around the implant, causing it to harden and potentially distort the breast shape. It can lead to pain, discomfort, and an unnatural appearance. Factors that increase the risk include bacterial contamination, implant rupture, or hematoma (blood collection). Treatment may involve medication, surgical removal, or implant replacement to restore comfort and aesthetics.