curious about anovulatory cycles - Mothering Forums

Forum Jump: 
 
Thread Tools
#1 of 9 Old 11-24-2002, 03:47 PM - Thread Starter
 
Allison's Avatar
 
Join Date: Nov 2001
Location: Arlington, MA
Posts: 75
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I just read that you ovulate once your estrogen level reaches some threshold, and then the follicle from which the egg bursts releases luteinizing hormone. The LH causes (among other things) the endometrial lining to build up. If the egg isn't fertilized the lining is shed as your period. Now, in an anovulatory cycle, if there is no egg bursting from a follicle, then there's no follicle releasing LH, and so it seems there should be no lining to shed. SO how can you have a period if you don't ovulate?? Is LH produced in some other way? Are periods following an anovulatory cycle lighter than normal?

Just curious!
Allison is offline  
#2 of 9 Old 11-24-2002, 06:12 PM
 
stafl's Avatar
 
Join Date: Jul 2002
Location: standing in a doorway
Posts: 9,227
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think it's the estrogen that builds the endometrium (uterine lining), I'll have to check in a book but that makes sense since it's also estrogen that makes endometriosis worse. I am under the impression that your menstrual cycle and your ovulatory cycle are two separate things that work in conjunction with one another but aren't dependent on one another... I'll look it up and get back to you.

FWIW - My anov bleeding is just like a regular period except maybe a bit lighter than what is normal for me, and a little late.
stafl is offline  
#3 of 9 Old 11-24-2002, 10:20 PM - Thread Starter
 
Allison's Avatar
 
Join Date: Nov 2001
Location: Arlington, MA
Posts: 75
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I just reread what I read before. LH rises once estrogen rises, and it's progesterone that the follicle releases and which builds up the endometrial lining. But my question is still valid, just with LH replaced with progesterone.
Allison is offline  
#4 of 9 Old 11-24-2002, 11:06 PM
 
birdwomyn's Avatar
 
Join Date: Nov 2002
Location: Oklahoma, USA
Posts: 268
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I am pretty sure it is estrogen that builds up the endometrium -- I just went through a month of fertility shots -- and they made my estrogen rise and as it rose, my endometrium grew and grew....

As for anovulatory cycles, my experience with them (and I have had mostly these kinds of cycles my whole life) is that I bleed heavier and with more clotting on an anovulatory cycle BECAUSE the endometrium grows and grows and grows.... but I never have the LH surge to trigger ovulation.......

I do know that when I am on birthcontrol, my periods get lighter and lighter, the longer I am on it -- because my endometrium doesn't grow.... Being on the pill really helps my endo.....

good luck figuring it all aout!!!

kathy
birdwomyn is offline  
#5 of 9 Old 11-25-2002, 12:17 AM
 
stafl's Avatar
 
Join Date: Jul 2002
Location: standing in a doorway
Posts: 9,227
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Here's what it says in TCOYF:
FELOP
Follicle Stimulating Hormone - eggs start maturing, follicles produce estrogen
Estrogen - estrogen makes the endometrium grow. once estrogen is high enough, triggers abrupt LH surge
Lutenizing Hormone (LH surge) - causes the egg to burst through the ovarian wall
Ovulation - follicle then becomes corpus luteum which releases progesterone
Progesterone - progesterone sustains the lining but the corpus luteum deteriorates at a certain point (Luteal phase) and the cycle starts over again

In anov cycles, either a drop in estrogen triggers menstruation or the estrogen keeps building the endometrium to a point where it can't support itself sufficiently and bleeding occurs.

So to answer your question, the lining is built up before ovulation, when and if you are going to ovulate, whether you are having a regular cycle or not. The difference is what triggers the lining to shed, but your body still has to get rid of that old blood before a new cycle can start. That's why docs prescribe progesterone to kick-start af and a new cycle.
stafl is offline  
#6 of 9 Old 11-25-2002, 12:26 AM
 
Arduinna's Avatar
 
Join Date: May 2002
Posts: 32,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My RE says that estrogen builds the lining, and progesterone actually softens the endometrium so it is soft and spongy and ready for possible implantation. LH doesn't effect the endometrium. LH only signals the final growth spurt and release of the egg.

Annovlatory bleeding can come from more than one cause. Either the lining builds up to a level that cannot be sustained so it sloughs off, or a combination of dropping estrogen levels without progesterone from ovulation causes it. Without progesterone the uterus can't sustain thick lining levels. Also you often get long annovulatory spotting cycles because without progesterone the lining does not come off as rapidly and cleanly.
Arduinna is offline  
#7 of 9 Old 11-25-2002, 05:09 PM - Thread Starter
 
Allison's Avatar
 
Join Date: Nov 2001
Location: Arlington, MA
Posts: 75
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thank you all for taking the time to share your knowledge with me. It's frustrating not knowing what my body is doing. I should buy TCOYF, but I keep thinking I'll be pregnant soon and won't need it.
Allison is offline  
#8 of 9 Old 11-25-2002, 06:22 PM
 
stafl's Avatar
 
Join Date: Jul 2002
Location: standing in a doorway
Posts: 9,227
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You can probably find a copy of TCOYF at a used bookstore for half the price of a new copy!
I didn't think I needed to read it either, but I've learned so much from it...
stafl is offline  
#9 of 9 Old 11-28-2002, 01:49 AM
 
silving's Avatar
 
Join Date: Jun 2002
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi Allison.

Please buy the book!!! It is very easy to understand and you will know more than MOST doctors.
Our midwife told us to get the book. WHAT A JOY!
Take care,
Silving
silving is offline  
Reply

Quick Reply
Message:
Drag and Drop File Upload
Drag files here to attach!
Upload Progress: 0
Options

Register Now

In order to be able to post messages on the Mothering Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off