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Origin of endometriosis

From: Terry (anonymous@obgyn.net)
Wed, 13 Sep 2000 06:19:47 -0500 (CDT)


At Mon, 11 Sep 2000, Harvey S. Marchbein, M.D. wrote: >
>There were, at one time several years ago, 12 different possiblities for
>the origin of endometriosis, the most well accepted is Sampson's theory,
>that of retrograde menstruation you mentioned below.

....

>At Mon, 11 Sep 2000, anonymous@obgyn.net wrote:
>>
>>Hi there,
>>
..... >>>From what I understand, the ovaries, tubes, and uterus are tightly sealed, so
>>I presume this must take place at some point when the tissue leaves the
>>uterus during menstruation?

.....

Hi,

Just a few thoughts on the possible origin of endo.

I think the tubes are not so tightly sealed at the other end, as they have to catch the egg that is released from the ovary, thus there must be some opening. Couldn't this opening be the one where endometrial cells escape into the abdomen (if they managed to travel up the tubes?)

Could the use of tampons during menstruation cause (in some women) stagnation of the menstrual flow, thus causing some of the lining to be pushed up the tubes, causing endometriosis? This theory would explain, why there are more and more cases of endo in the last years, since tampons became more popular.

And could medical procedures, where the uterus is filled with high pressure liquid or gas (like in hysteroscopy or HSG), cause some of the endometrial lining to be pushed up the tubes and cause endo?

Thank you for any insight on these thoughts.




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