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Placental lakes?

8346 Views 5 Replies 3 Participants Last post by  CarolynnMarilynn
Does any one have any info on placental lakes? How are they caused, what are the effects, problems with them, etc? I am also thinking there is a more technical term for them... and that would help me research on line, etc, but I can't remember it wouldn't ya know. Anyone?

When they show up on u/s it shows up as fluid- is it assumed the fluid is blood, or can it be other fluid?

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placental lakes are normal - they are areas on the uterine/placental surface that pool and allow the placenta to take what it needs.

is this in reference to an ultrasound you had?
In referenece to a mom who had them show up on u/s. (Me... I have no u/s... I'd rather not peek at what "might be going on" and expect all is fine, lol).

She was told they were "Okay as long as there weren't too many" whatever that means. So I am trying to learn more about them... I know I read about them a while back on the ICAN list- of course, their stuff isn't archived and I lost my hard drive, so I have no trace of it. I was thinking that it wasn't necessarily a bad thing from what I read- just an area that showed up with some extra depth of fluid. So I want to know more about them, why Too many could be bad, etc. Also if mom needs to keep going back to measure them, check if there are more, etc. She tends to not want to.. mw does want her too, etc.
They are little bleeds under the amniotic membrane on the surface of the placenta. Totally normal, and you may be able to see evidence where they were (that part of the placenta may not grow futher, but the placenta still functions fine. The placenta could have 2/3 of it's area not working and still be ok!). No cause for concern. Sometimes a little of that blood will seep out and you may have spotting: again no cause for real concern unless heavy.
Thanks, Carolynn - I've always been under the assumption that they're normal in the spaces between the cotyledons. They're not something that regularly occurs?

That was the explanation from a radiologist. The lakes are on the baby's side of the placenta, not the maternal side, and are different from the maternal blood that bathes the placental bed.

I did some more research to be sure: They are totally normal, found in about 18% of scans, and not associated with abruption, growth restriction, or any other problems.

I love the placenta!
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