follicular cohort
A group of follicles that begin development together during a single menstrual cycle, from which typically one becomes dominant in natural cycles.
Full Definition
The follicular cohort refers to the group of follicles recruited and activated simultaneously at the beginning of each menstrual cycle. In natural cycles, one follicle from this cohort typically becomes dominant while others undergo atresia. In controlled ovarian stimulation for IVF, medications are used to prevent this natural selection process, allowing multiple follicles from the cohort to develop to maturity. The size and quality of the initial follicular cohort influences treatment outcomes and protocol selection.
Usage
Usage note: Distinguish from the total follicular pool, which refers to all remaining follicles in the ovaries.
In Context
- "The patient's follicular cohort responded well to gonadotropin stimulation with 12 measurable follicles." — IVF stimulation cycle note
- "Poor follicular cohort recruitment may indicate diminished ovarian reserve." — Fertility assessment report