Follicular monitoring or follicular study is a vital component of in-vitro fertilization (IVF) assessment and timing . It basically employs a simple technique for assessing ovarian follicles at regular intervals and documenting the pathway to ovulation. A follicular study , also known as follicular monitoring study or simply a follicular scan is a technique of studying and monitoring the follicles in your ovaries. What is a Follicular Study? Follicular study, also known as follicular monitoring, is a crucial part of fertility evaluation and treatment . It involves a series of ultrasound scans to track the development of ovarian follicles, the fluid-filled sacs in the ovaries that contain immature eggs. A follicular study is a series of vaginal ultrasound scans that take 5-10 minutes to complete. The follicles of your ovary begin to form on the ninth day of the cycle. Thus, the series of scans will continue until all follicles have vanished and ovulation has begun. Couples are then encouraged to engage in sexual activity. The study helps couples to conceive by allowing the sperm and egg to meet at the optimal time.