Thank you for the question. You will find that there is no single "right answer". Breast reduction surgery is one of the most patient pleasing operations we perform. By removing “excess” breast tissue, adipose tissue, and breast skin this operation reduces and lifts the breasts to a higher position on the chest wall. By doing so, patients often find improvement in neck, back, and shoulder discomfort and find it easier to form their activities of daily living and exercise. Timing of the operation will depend on the patient's life circumstances. In general, it is best to do this procedure ( like all other elective body contouring the stages, when patients have reached their long-term stable weights. In doing so, improve the safety of the procedure and minimizes the need for further surgery ( in the event of weight gain/loss after the breast reduction procedure). Always, there are no "absolute rules"; in my opinion, it is best to individualize every patient's care. There are patients who present with “juvenile” breast hypertrophy will benefit from breast reduction surgery ( for both physical and psychosocial reasons) at an early age ( even as teenagers). Patients should consider carefully the pros and cons of the procedure as well as the potential need for further surgery if the breasts “regrow” in size. If at all possible, it is best to wait until after completing pregnancies before undergoing breast reduction surgery. Again, doing so will minimize the chances that patients will require further surgery after pregnancy related breast changes. On the other hand, it can be argued that, patients with breast hypertrophy benefit from breast reduction surgery prior to pregnancy ( to prevent the symptoms that may occur as the breasts grow even larger during and after pregnancy/breast-feeding). However, in the interests of avoiding additional surgery, I feel that it is in most patients best interest, to wait until pregnancies have been completed and a long-term stable weight has been reestablished. This is especially true of pregnancies are planned in the near future. There is no "standard" recommended waiting time for pregnancy, after breast reduction surgery. I hope this helps.