Follicular Study: Monitoring Ovarian Follicle Development for Fertility Treatment

A follicular study uses serial ultrasounds to track follicle growth during the menstrual cycle, primarily for IVF timing.

Typical Protocol

1. Cycle day 2–3: Baseline ultrasound assesses follicle count/size.
2. Monitoring phase: Scans every 2–3 days track dominant follicle maturation.
3. Follicle measurement: Largest follicle diameter recorded each visit.
4. Endometrial evaluation: Lining thickness checked for implantation readiness.
5. Trigger shot timing: hCG given when follicle/endometrium optimal; ovulation ~36–40 hours later.

This guides egg retrieval and insemination/embryo transfer for best pregnancy chances.