Can you help figure out what these creases/ridges on top right breast (appeared 3 years post op) are? (Photo)

Good afternoon,
Those are likely just bands of thickened capsule- they don't usually cause any functional problem except sometimes there is the aesthetic concern if they show in clothing. Somple fix is surgery- nonsurgically not a whole lot you can do to change them.

That's the muscle flexing over the implant causing what some people call an animation effect. It's not worrisome or worth trying to correct

Dear Independent39200,
I understand your concern. However, without a proper assessment, it would be difficult to determine what went wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

An examination is needed to be certain, but you may have some areas of compression from bras or even fat necrosis where the bar dropped sharply onto a breast.

Dear Independent39200,
Thank you for your question and photo. I have a question for you. Have you noted any increase in firmness in this breast compared to the other breast? As you know, the body recognizes the implant as foreign and forms a scar (or capsule) around the implant. In some cases, this can progress and lead to increased firmness or lead to tethering of some of the overlying tissue that can then be evident in different positions as the implant moves. If this is bothersome, the scar can be removed (capsulectomy) and the implants replaced. Seek out a board certified plastic surgeon to perform a thorough history and physical exam who can then better diagnose and treat you.
Hope this is helpful and wish you well.