A submuscular or dual-plane breast augmentation often looks softer and more settled a couple of years after surgery than it does in the first few months. The upper pole usually becomes less tight, the implant sits in a more stable pocket, and the breast tissue and skin adapt around the implant. The final look depends more on starting anatomy, implant size and profile, skin quality, pocket control, and healing than on the word "submuscular" alone. When the implant is well matched to the chest and tissue, the result can look natural and stable. Possible long-term issues include animation movement with chest muscle contraction, implant settling too low or to the side, rippling in thin tissue, or changes after weight fluctuation, pregnancy, or aging. If you are asking about your own result, an exam with your surgeon is the best way to judge whether the implant position and pocket are stable.