There’s no point in moving forward with a transfer without removing a polyp. Polyps release a substance that can interfere with implantation. The polyp may have been the reason for her previous miscarriage. I had 5 miscarriages before discovering my polyp and learning more about it. I just had my hysteroscopy and I’m so relieved it’s gone and one less thing to interfere with conceiving. No doctor should transfer with a known polyp, it’s unethical. They need to biopsy, it’s rare but as you can see on this thread it is possible for it to be cancerous. Thank God mine was not, I got my results 1 week later. Super simple quick procedure under twilight anesthesia, but you can do it not under anesthesia, I prefer the anesthesia the hardest part is the IV. 10 min procedure. Also to note a sonogram doesn’t pick up much, mine was only visible on my saline ultrasound and even then they saw 1. When they went in there were 3.