How to judge the quality of follicles? The assessment of egg quality is a very important but easily overlooked aspect of embryo quality, because both embryo implantation and pregnancy outcomes are related to the quality of the originating egg. If it is an egg that lacks development potential, then even after fertilization, it does not have the ability to implant and mature the fetus. Generally, the quality of eggs is measured by the development of follicles. If you want to know whether the quality of your eggs is high, the best way is to go to the hospital for ultrasound monitoring on the 12th day of the menstrual cycle. Monitor the development of follicles and eggs through B-ultrasound. It will be clear at a glance whether the quality is high or not.