Corpus Luteum

Definition of Corpus Luteum:

Yellow endocrine structure formed during the third phase of the menstrual cycle (Luteal Phase) which lasts for 10-14 days unless a pregnancy occurs.  It produces high volume of progesterone and moderate levels of estrogen (estradiol).  If pregnancy occurs, the corpus luteum begins to produce hCG (human chorionic gonadotropin.)  This hormone stimulates the corpus luteum, preventing it from dying in early pregnancy.  The corpus luteum produces estrogen and progesterone in the early part of the pregnancy, and is therefore vital for maintaining that pregnancy.  If pregnancy does not occur, the corpus luteum regresses, the levels of progesterone and estrogen recede, and the breakdown of the endometrium causes menstrual bleeding.

Topics Related to Corpus Luteum

Edema (Water Retention)

...relationship to Progesterone Low or Estrogen Dominance
“...The ovarian dysfunction most frequently observed was inadequate corpus luteum, i.e. progesterone deficiency with normal plasma estradiol levels...”

Luteinizing Hormone

...related topic
“Anterior pituitary hormone stimulating estrogen production by the ovary; promoting formation of progesterone by the corpus luteum in women and stimulating testosterone release in men.”
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More topics Related to Corpus Luteum


...the condition
“...Anovulatory or estrogen breakthrough bleeding is caused by the production of estrogen without normal surges of luteinizing hormone (LH) and secretion of progesterone from the corpus luteum.  This may occur in high or low estrogen states and is the cause of most of the DUB; it occurs at the extremes of the reproductive cycle...”

Ovarian Cysts

...the condition
“...A corpus luteum cyst is a yellow mass of tissue that forms from the follicle after ovulation...”
...related topic
“...They may be either "follicular cysts", produced by all menstruating women every month and reaching up to 2-3cm in diameter before they rupture at ovulation, or "corpus luteum cysts", which appear after ovulation and may grow to produce "hemorrhagic cysts" if ovulation does not occur or is delayed...”
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More topics Related to Corpus Luteum


...related topic
“This is the hormone secreted after ovulation by the corpus luteum.  It is a steroid (similar to a cholesterol), enters receptive cells to stimulate their growth, and acts as an anabolic agent...”

Progesterone Low or Estrogen Dominance

...the condition
“...Without ovulation, no corpus luteum results and no progesterone is made...”
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