Breast capsular contracture occurs when scar tissue around breast implants hardens, causing discomfort or deformity. Common signs include a hardened or firm feel to the breast, visible distortion or asymmetry, and pain or tenderness in the affected area. The breast may feel tight, and the implant may appear higher or more displaced than usual. Treatment options vary depending on severity, from massaging the breast or adjusting implant position to surgical interventions like capsulectomy (removal of scar tissue).