Symptoms of breast implant surgery complications can vary but often include persistent pain, swelling, or discomfort around the implant area. Signs of infection may include redness, warmth, fever, or unusual discharge. Capsular contracture, where scar tissue tightens around the implant, can cause hardening, distortion, or discomfort. Implant rupture may lead to asymmetry, lumps, or changes in breast size and shape.