Can breast tissue expanders stay in 6-9 months?

Thanks for your question.  Yes, they are safe and can easily be left in place for 9 months. I have patients that have them in place much longer because they go through several months of chemotherarpy followed by radiation.  I will typically wait closer to one year after radiation before proceeding with an expander removal.  Please address your concerns with your surgeon.  Good luck. 

Hello!  There are no issues of keeping tissue expanders in for at least this period of time. It is actually common to have them in at least this long for those who undergo chemotherapy and/or radiation. Best wishes!

In fact, I have seen them stay in even longer.  They are not meant to stay in permanently, as they are to be replaced by softer and better shaped implants.  I have done over 2000 reconstructions.  Expanders appear different, feel firmer, and are saline.  The highly cohesive gel implants like those from Sientra appear and feel the best in my opinion.