Reproductive Endocrinology Glossary

Histological assessment of endometrial development to determine luteal phase adequacy and timing.

The uterine lining's readiness to accept embryo implantation. A critical factor in successful pregnancy achievement.

The measurement of the endometrial lining, typically assessed via transvaginal ultrasound to evaluate uterine receptivit...

Ovarian cyst containing endometrial tissue and blood, associated with endometriosis and fertility impairment.

The laboratory assessment performed 16-20 hours after insemination or ICSI to confirm successful fertilization by observ...

The percentage of mature eggs that successfully fertilize. A key metric in assisted reproductive technology outcomes.

Frozen embryo transfer; the process of thawing previously cryopreserved embryos and transferring them in a subsequent cy...

A gonadotropin hormone that stimulates ovarian follicle development. Essential for monitoring fertility treatments.

A group of follicles that begin development together during a single menstrual cycle, from which typically one becomes d...

First phase of the menstrual cycle characterized by follicle development and estrogen rise.

Serial ultrasound monitoring of ovarian follicle development during controlled ovarian stimulation cycles.

Percentage of cytoplasmic fragments in an embryo, used as a quality assessment parameter in IVF laboratories.

An embryo transfer performed in the same cycle as egg retrieval, typically 3-5 days after retrieval without embryo freez...

Woman who carries a pregnancy for intended parents using an embryo to which she has no genetic connection.

A medication that blocks gonadotropin-releasing hormone to prevent premature ovulation. Used in controlled ovarian stimu...

Pulsatile delivery device for gonadotropin-releasing hormone used to restore normal reproductive function.

Hormones that stimulate gonadal function, including FSH and LH, used therapeutically in fertility treatments to promote...

Rapid rise in luteinizing hormone that triggers ovulation in natural and stimulated cycles.

Synthetic hormone that initially stimulates then suppresses natural reproductive hormone production.

A rare ovarian tumor arising from granulosa cells that often produces estrogen and presents with hormonal symptoms.

Fluid accumulation in a fallopian tube due to distal obstruction, which can significantly impair fertility and IVF succe...

Excessive male hormone production in women causing reproductive and metabolic dysfunction. A key feature of polycystic o...

Condition where high levels of gonadotropins fail to stimulate adequate sex hormone production due to gonadal dysfunctio...

X-ray imaging procedure using contrast dye to evaluate uterine cavity and fallopian tube patency.