CSI Commercial Training And Development Practice Test

Reduced quantity and quality of oocytes in the ovaries is described by diminished ovarian reserve. This concept explains fertility impairment because as the ovarian reserve shrinks, the pool of viable eggs to ovulate declines, and the eggs that remain may be less competent, lowering the chances of successful conception. Clinically, reserve is often assessed with markers such as anti-Müllerian hormone levels, day-3 FSH, and antral follicle count, with age being a strong influencing factor. Polycystic ovarian syndrome involves irregular ovulation and hyperandrogenism rather than a reduced ovarian egg reserve, so it isn’t defined by diminished egg quantity/quality. Ovarian hyperstimulation syndrome is a complication that can occur with fertility drugs, not a baseline description of the ovary’s capacity. Premature ovarian failure (primary ovarian insufficiency) describes very early loss of ovarian function and may present with amenorrhea, but diminished ovarian reserve is the broader term that captures reduced egg quantity and quality that can underlie infertility, at any age.