Left nipple goes inward when flexing. Could this be from under the muscle implants and will removal fix this?

Sub muscular implant can cause a condition called breast animation deformity. So the most likely answer is yes. Removing sub muscular implants usually corrects the animation/distortion. Repositioning your implants in the sub glandular position (on top of the muscle) can correct this as well.

Just removing the implants may not change how the nipple reacts. You could have the implants placed just behind the breast tissue to correct the issue.

Hello @jenyfromtheblock, thank you for your question. A personalized assessment of the process is necessary to have a surgical plan that takes into account a number of factors. This includes your health, what you expect and what you may be able to accomplish in the long run. Remember that prostheses need to be replaced every 10 years. To determine the best course of action, a personalized consultation is necessary, in which all aspects are considered. Best wishes! Alan Gonzalez MD, FACS. Best wishes!