What is the corpus luteum?

The corpus luteum, which means yellow body in Latin, is what is left of the follicle after a woman ovulates. During the follicular phase of a woman’s cycle, several follicles develop under the influence of FSH (follicle stimulating hormone). Each follicle contains an egg. In a typical cycle only one egg will become mature enough for ovulation. When a woman ovulates the egg will burst from the follicle. Then what is left of the follicle will become the corpus luteum. The luteal phase, named after the corpus luteum, is the second half of a woman’s menstrual cycle. The luteal phase begins after ovulation and continues until menstruation occurs.

What does the corpus luteum do?

The corpus luteum produces progesterone. Progesterone makes the lining of the uterus thick for implantation and is necessary to sustain a healthy pregnancy. The corpus luteum produces progesterone until the placenta begins to take over progesterone production around ten weeks gestation.

How long does the corpus luteum survive?

After a woman ovulates, the corpus luteum only lasts for about 12-14 days unless it begins receiving HCG (human chorionic gonadotropin) from a developing embryo. If the egg is not fertilized, the corpus luteum dies and progesterone production stops. When progesterone levels drop, the uterus lining stops thickening and is consequently shed during menstruation.

If the egg is fertilized, the corpus luteum will begin receiving HCG from the embryo. HCG tells the corpus luteum to keep producing progesterone. The corpus luteum lasts for about ten weeks after ovulation. After ten weeks the placenta takes over progesterone production through the end of pregnancy.

What is corpus luteum deficiency?

Corpus luteum deficiency, also known as corpus luteum defect, means that the corpus luteum does not produce enough progesterone to allow a pregnancy to develop. Without sufficient progesterone levels, the lining of the uterus will begin to shed. If a woman is pregnant and has low progesterone levels this may result in miscarriage.

4.026085
Average: 4 (115 votes)
 

1 comments

By MindyKana on 10/19/13 at 1:34 pm

The PREGNANCY MIRACLE GUIDE also has a ton of corpus luteum information!

Sign in to leave a comment!

Today on JustMommies

Cervical Dilation in Pictures

Your doctor has measured you and told you that you are 1 to 2 centimeters dilated, but what does that look like?

Bully-Proof Your Child

Bullying is one of those inevitable facts of life. As much as parents try to eliminate it, schools try to govern it...

Celebrate the Arrival of Autumn

Autumn is here! While we watch the leaves begin their graceful descent from the trees...

P

From the Message Boards

Trying to Conceive

Grad Update *pic heavy*

Just dropping in to update. I know there are a lot of new faces here and a few that were here when I...

Trying to Conceive

October Roll Call!

New month, I think we should have a new roll call! Wish we had mods on this board for stuff like thi...

Trying to Conceive

Do you believe in...

Signs for above? I have heard stories ladies have told that their LO said they were going to have a...

Trying to Conceive Your First Child

Please tell me what this is!

Hello my lovely ladies! Quick question I woke up this morning with this bad pain on my left side. I...

Trying to Conceive

When would you test?

Here's my cycle info:9/23 pretty sure I had a positive opk 9/25 pains in my lower left abdomen, cont...

» Check out the friendliest message board for moms and moms-to-be!