Is this capsular contracture or could it be cancer? I am scared. I have no unusual lumps (can feel rubbery ducts by areola tho)

It is always recommended to follow up with your plastic surgeon regarding your concerns. You will need an in person examination to answer your question.

Capsular contracture is a hardening and tightening of the capsule (a scar tissue layer that forms around all implants).  It can happen at any time in life after breast augmentation.  The capsule gradually tightens and can draw the implant up, in , or out depending on the forces of the contraction.  Pain, feeling lumps, edges, or sometimes rippling can also happen.  Specific lumps can also be silicone that is loose in the pocket or capsule from a ruptured silicone implant that has moved outside the capsule through a small tear in the capsule.Almost all of capsular contractures and lumps from the edge of implants or silicone are benign, but should lead a person to have the capsule removed and implants and any extra silicone removed.  Another implant can then be placed.  This takes more time than the original augmentation and is best handled by a plastic surgeon with experience.There is a rare case of lymphoma in the implant pocket, but this has happened less than a couple of hundred cases.  It usually shows up as a marked swelling of the breast with an enlarging fluid collection in the implant pocket called a seroma.  A board certified plastic surgeon can help in this case as well with the information at our disposal from our national society, ASPS.

Thank you for your question though a full examination is needed.  You have older implants and obviously a problem with your left one so see your surgeon and get his recommendations.Dr Corbin

It will not be possible to know anything for certain without a physical exam.  This might be a capsular contracture.  It is very unlikely to be breast cancer, however, so that should not worry you.  Best bet is to be seen by a plastic surgeon.