Egg retrieval is generally general anesthesia, but also local anesthesia. Using vaginal dilators and some instruments can be completed in a short time. The number of retrieved eggs varies from person to person. Usually there is not much pain. You can go to the professional website of IVF to learn about this knowledge.
"Meng Tong 5 1.com" is a IVF forum website, which is full of IVF information. Baidu can find it at once. Good luck with your pregnancy