Patient's question:
NoDoctor's answer:
The follicles begin to gradually increase in size 3 to 5 days after menstruation. The earliest observation via ultrasound is around day 5, reaching the size of an ovulatory follicle by day 14 to 16. It is recommended to start ultrasound monitoring around 5 days after menstruation. In the first few days, monitor every other day to check for the appearance of a dominant follicle. Around day 12, the growth rate of the follicle increases, and daily monitoring is recommended. On the day before ovulation, monitor every half day.