Dear suyung2582,Thank you for your thoughtful question. When it comes to having liposuction on the arms with abirth control implant, there are a few things to consider. First, the placement of the implant willbe important. Most liposuction done on the arms is performed on the posterolateral or outerregion of the upper arms, and the procedure may potentially damage or displace the implantdepending on where it is located. Second, if the implant were left in during surgery, trying toavoid it could affect the outcome of your procedure and result in contour irregularities. Finally,the removal of fat and tissues in the area may affect absorption rates and make the implant lesseffective. Post-operative inflammation and swelling could also be problematic. Due to theseconcerns, I strongly recommend that you discuss your upcoming procedure with the doctor thatplaced your Nexplanon implant in addition to scheduling a consultation with a board-certifiedplastic surgeon. They will be able to provide you with more specific information and recommendwhether the implant should be removed for surgery and reinserted, or if it can be left in place.Good luck to you!