What are the causes of a Breast Implant that isn't dropping?

There are a few reasons why the implants did not drop. If it is under the muscle, the muscle may be keeping it higher as you use that arm. You may have a smaller pocket that formed around the implant, or a tighter capsule. All implants will have capsules. Occasionally, a bony rib or the sternum protrudes and does not let the implant settle. Or, the pocket may have been made too tight at the time of surgery if it was being tightened.

Dear LKL007,
dropping of implants is part of the healing process and this occurs after the tissues surrounding the implants slowly relax, allowing the implants to settle into their final position. It can take about four to six months for the implant to drop down to their final position.I understand that you are worried about your implants are not dropping as expected. HPlease do allow some time for the healing process to occur. If after six months, you are not satisfied with the appearance of your breast, you can visit your plastic surgeon and discuss your concerns.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

If postoperative massage is performed correctly, this should be fairly uncommon. When it does happen, the most common reason would be scar tissue formation(capsule). Depending on how your body forms capsules around your new implants, they may sit higher than you want. This can often be improved with a capsule release(capsulotomy).