Breast implants may have problems if there are noticeable changes in breast shape, size, firmness, or position. Common warning signs include persistent pain, swelling, redness, hardening, unevenness, or unusual lumps. Capsular contracture can cause implants to feel tight or become distorted. Sudden swelling, severe pain, or significant changes require prompt medical evaluation. Regular follow-ups with a qualified healthcare professional help identify potential complications and determine appropriate treatment options.