How long till breasts stop changing and take on their final shape??

It's interesting to see the diversity of the answers here. Numerous scientific studies regarding healing and scar maturation have been done and reported in our literature. "Average" healing time is about 7 months, but that is the center of the bell-shaped curve that defines the statistics of standard deviations from "average."Although individual patients can certainly vary in their times to complete healing, some will be "done" in as little as 3-4 months, but others can take up to a year. To include the vast majority of patients within the statistical variations, 6-12 months will be the "correct" answer.Simply looking at scars and their complete fading and softening over many months post-surgery or post-laceration repair will confirm that "final" results are not evident for that 6-12 month period of time.So, at 6 weeks you are far from complete in your healing, scar softening and maturation, and additional stretch and dropping. That will take many more months. Which is why it is important to be careful about wearing certain kinds of push-up or tight-fitting stretch brassieres that can still affect your final outcome. Stay in  touch with your surgeon, and follow any advice about bras, elastic bands, and activity. I have seen far too many patients who looked absolutely great (perfect) at 3 months post-op, and then destroyed their results with the same day-in, day-out push-up bra that caused symmastia and closed-off pockets laterally with centrally-displaced implants and "wall-eyed" nipples. Yes, from wearing the "wrong" bra all day every day. The consistent pressure can cause implant displacement while the scar capsules are still immature, incompletely-stretched, and changeable. Re-operation could have been avoided in these kinds of cases. But only if your surgeon sees you frequently during the scar healing process (internal as well as external scars).I see my patients the day after surgery, and again at one week, 2-3 weeks, 6 weeks, 3 months, 6 months, and yearly (all at no additional charge). That gives me the best opportunity to positively affect the healing process so we get the desired result. Some surgeons operate, do a recheck or two, and move on to the next patients. Unfortunately, these prior patients sometimes need additional care but don't find out until too late. Bad doctor! Sad patient!So if you're seeing your surgeon regularly, good for you. But be patient--lots of healing to go. Best wishes! Dr. Tholen

At 6 weeks your breasts will still continue to change. Typically it takes 3 months for your implants to settle in and for you to get your 'final' result however, it can take longer. 

The healing process can take more than six weeks and possibly several months. Important considerations after surgery are massage, supportive bra and time. The shape will come and your not looking at the final result.