Blighted Ovum Causes Unless you actually have the tissue analysed from your blighted ovum, you will not know exactly what caused it. However, medical practitioners believe that the reason the embryo does not develop is because there are chromosomal abnormalities when the egg fertilises.


Although it is thought to be more common that the abnormalities lie with the egg, it is also possible that sperm that is not fully perfect can also cause a blighted ovum.


What you need to know is that there is nothing that you have done that could have cause the situation of a blighted ovum, so there is no point in blaming yourself.  It is just natures way of stopping a pregnancy that would not form a functioning human, or one that would not go full term because of abnormalities.


The other thing that you should take note of is that the chances of having another blighted ovum once you have had one are very small and it is unlikely to happen again, albeit it is not impossible. The problem is that once you have had this type of loss, it is always in your mind when you next become pregnant.


There is some anecdotal evidence of supplements that you can take to improve the quality of your eggs but there is no guarantee that taking these will mean that you will not suffer from a blighted ovum.


One study from the Center For Human Reproduction** showed that introducing DHEA to women going through IVF in particular gave better results in terms of embryo quality and a lower miscarriage level. You can buy DHEA over the counter and on Amazon (in the US and the UK).

There has also been a limited amount of reserach carried out into the benefits of taking Coenzyme Q10 (CoQ10) in older women. One study*** found the following:


“We pretreated 52-week-old ICR mice with the mitochondrial nutrients coenzyme Q10 (CoQ10), r-alpha lipoic acid, and resveratrol before ovarian stimulation and flushing of oocytes from the fallopian tubes. Our preliminary data demonstrated that CoQ10 treatment, but not the other two nutrients, was associated with increased oocyte numbers and oocyte mitochondrial activity parameters, similar to oocytes from young ICR controls.”


Many people therefore advocate taking CoQ10 for 3 months prior to conception to enable an increase in egg quality. Once again there is no guarantee that this will not lead to a blighted ovum or any other type of miscarriage. CoQ10 is also available at Amazon:

** You can get further information on this study here

*** pdf  results of this trial can be found here 


  • Reply Brie July 8, 2015 at 11:04 am

    Thank you for your reply yesterday- we have our ultrasound tomorrow so I am praying this doesn’t occur a second time.
    We had my tissue analyzed after my first BO and it was not caused by chromosomal abnormalities- my doctor told me it was most likely inadequate hormone levels that caused it. Does this make it more likely (in my case) to have another BO?

    • Reply admin July 9, 2015 at 11:49 am

      Hi Brie, I hope your scan goes well today. I think in a lot of cases doctors don’t really know for sure what causes a blighted ovum. Did he say which hormone levels? The most common one that causes problems seems to be low progesterone but like you say you had yours tested so I would expect if that level was low (which I don’t think it was but different countries have different scales) then they would have given you a progesterone supplement. If they can tell you which hormone levels then you could do something to address that which may well help, but of course it could just be that the last one was a one-off (hopefully) x

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