Hard breast implants may indicate capsular contracture, a condition where scar tissue around the implant tightens, causing firmness, discomfort, or distortion. This can develop due to inflammation, infection, or the body’s natural immune response. Diagnosis involves a physical exam and imaging tests. Early stages may be managed with massage, ultrasound therapy, or medication, while severe cases often require capsulectomy, implant replacement, or fat grafting.