Will Pregnacy but Not Breastfeeding Ruin my Breast Reduction Surgery?

Thank you for the question.

There is no accurate way of predicting exactly how the breasts will change after pregnancy and there is not much that can be done to avoid these changes ( if they are going to occur).  Maintaining a stable weight  (under the guidance of your OB/GYN) will be helpful in minimizing breast changes that occur secondary to significant weight fluctuations.

Some typical changes seen  after pregnancy include a decrease in size, “sagging" and/or the development of some asymmetry.  On the other hand, some women  experience very little change even after several pregnancies.

I would suggest you enjoy the pregnancy (as much as possible)  and the infant: it is safe to expect some changes in size and/or position of the breasts ( that may or may not benefit from revisionary surgery in the future).

Best wishes.

Pregnancy will unlikely "ruin" your results, but you are likely to experience changes in breast size and contour following pregnancy.  These changes vary with patient age, weight change, and skin quality, among others.  Gynecologists recommend about a one pound per week weight gain with pregnancy (in mothers of ideal weight).  The greatest degree of change is often observed with the most dramatic weight gain.  Thus, it is wise to maintain weight within normal parameters during pregnancy. 

I would not say "ruin" results. It is normal to experience appearance changes from pregnancy and weight fluctuation. Typically the breasts get larger throughout your pregnancy, then size decreases after you return to your normal weight. The breasts can subsequently become more saggy after a pregnancy and sometimes the amount of breast tissue gets smaller after a pregnancy, even if you don't  breast feed. Whether or not an individual has had a surgical procedure on their breasts does not change or affect the normai physiologic changes on the breast. The overall effect may or may not affect the appearance enough to desire another surgical procedure. It depends on many variable individual characteristics. Oftentimes, surgical results hold up just fine.