<h3>Study Objective</h3> The aim of this presentation is to demonstrate a safe, minimally invasive, and immediately effective treatment option for cesarean scar pregnancy (CSP) using transvaginal microwave ablation. <h3>Design</h3> case presentation. <h3>Setting</h3> monitored care anesthesia, dorsal lithotomy position. <h3>Patients or Participants</h3> A 30-year-old G4P3 with severe obesity and three prior cesarean sections presented with a positive home pregnancy test, vaginal bleeding and cramping and was diagnosed with a CSP by transvaginal ultrasound. Imaging showed a fetal pole measuring 6w2d gestational age with fetal cardiac activity, and a 5 mm distance between the gestational sac and bladder serosa. The patient was extensively counseled regarding possible management options, at which time Interventional Radiology was consulted. Upon further evaluation and MRI imaging, she was deemed a candidate for novel treatment using transvaginal microwave ablation of the gestational sac. <h3>Interventions</h3> Using the Emprint™ Ablation System, an antenna needle was attached to a transvaginal ultrasound probe and directly inserted into the gestational sac. The ablation zone was adjusted to incorporate the entire gestational sac and microwave ablation was performed. Total treatment time was 72 seconds. <h3>Measurements and Main Results</h3> Immediate post-ablation ultrasound revealed total collapse of the gestational sac with only scant bleeding at the puncture site. Her overall postoperative recovery was unremarkable. Serial beta-hCG levels dropped precipitously from 13,048 before the procedure to 6,693 on postprocedure day 1 and 1,059 on postprocedure day 2, eventually resolving completely by postprocedure day 13. <h3>Conclusion</h3> The goal of this presentation is to demonstrate the novel use of transvaginal microwave ablation for cesarean scar pregnancies. This is a minimally invasive procedure that is quick, safe, and provides immediate resolution of a CSP without requiring prolonged surveillance after treatment. Further studies are required to showcase the true efficacy and safety of this technology as well as to determine its effects on future fertility.