Endometriosis UK
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Does zinc make periods last longer?

My bacon and egg toastie got stone cold while I typed out a post, and it didn't post and vanished!!!

My periods are always regular and fairly moderate. In my early twenties they went from lasting 7 days to 3 days which pleased me no end and have been the same since. I had a shoulder op in September the same day my period was due, it was a week late after surgery. Oct was mostly brown blood and lasted 7 days. This month, started Monday night and has been heavier. Changing tampons more often. I have been taking evening primrose oil capsules and zinc to see if that helps with my endo pain during period. I also have been taking naproxen five days before period started to help ease my pains. It worked for the most part. My fatigue hit Wednesday evening just as I left the office and I've been wiped out since. Luckily I was told wed to work from home for rest of week! I'm new to the role, my first week and was terrified of this period. They don't know about my endo in this role, they're all men I don't know! My last role, I spoke openly about it but always made work. I drove then, now I commute. Thursday my period showed signs of stopping so removed tampon, few hours later, the one spot on my right abdomen started hurting for the first time during period and started bleeding properly again. Friday same thing happened. Took tampon out last night, same thing, so didn't put a new one in. This morning, bleeding properly all over again. I'd give up crisps if I could go back to three days again! I am wondering if taking the zinc has made my periods longer? Can't find anything on Internet, it's all the reverse, or doesn't make sense. I've read it can make fibroids smaller, which I have growing merrily outside my womb, swaying in the breeze! If anyone has any other suggestions of things to try, as try them I will. The chronic fatigue is the one I really want to get rid of. Yesterday felt good all day and then bam again in the evening. feel okay so far today but I am lying in bed still!

3 Replies

Evening Primrose oil is more likely the culprit.

WebMD pages on Evening Primrose oil state (http://www.webmd.com/vitamins-supplements/ingredientmono-1006-Evening+Primrose+EVENING+PRIMROSE+OIL.aspx?activeIngredientId=1006&activeIngredientName=Evening+Primrose+%28EVENING+PRIMROSE+OIL%29&source=2)

Evening primrose oil is LIKELY SAFE for most people when used for up to a year. It can sometimes cause mild side effects including upset stomach, nausea, diarrhea, and headache.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Taking evening primrose oil is POSSIBLY UNSAFE during pregnancy. It might increase the chance of having complications. Don’t use it if you are pregnant.

It is POSSIBLY SAFE to take evening primrose oil during breast-feeding, but it’s best to check with your healthcare provider first.

****Bleeding disorders: There is a concern that evening primrose oil might increase the chance of bruising and bleeding. Don’t use it if you have a bleeding disorder. [Endo is a bleeding disorder]

Epilepsy or another seizure disorder: There is a concern that taking evening primrose oil might make seizures more likely in some people. If you have a history of seizure, avoid using it.

Schizophrenia: Seizures have been reported in people with schizophrenia treated with phenothiazine drugs, GLA (a chemical found in evening primrose oil), and vitamin E. Get your healthcare provider’s opinion before starting evening primrose oil.

****Surgery: Evening primrose oil might increase the chance of bleeding during or after surgery. Stop using it at least 2 weeks before a scheduled surgery.

So that's likely your answer.

whereas Zincs page is on webmd.com/vitamins-suppleme... and doesn't appear to be an issue with bleeding problems.

Evening Primrose is known to not be endo friendly.


Thanks, so much info gets confusing, I read online it helps with cramps and the pains!


Yes it can - because oestrogen can help reduce that type of discomfort - and it promotes oestrogen - which is why it can be a big benefit to women going through menopause to ease their loss of sex hormones....but sadly it the the oestrogen that also feed endo and adenomyosis activity .Fine if you are an otherwise healthy woman just experiencing a few issues - but not the wisest choice when you do have a hormone sensitive condition like endo. It is still your choice - you might prefer to reduce cramps etc and just put up with the heavier longer bleeds if the cramping pains are the worse of two evils.

To my way of thinking - stopping periods from happening at all seems the best all round solution. That way you don't need to take supplements, or painkillers or put up with the pains and bleeding.

Since I had a mirena put in and it got to work - I only missed 4 days work in 3 years and that was with a severe flu infection that knocked out most of my colleagues too.

I do only work part time - but even so, my sickness track record has never been this good in my entire working life for 30 years. 100% guarantee that would not be the case if I was still having periods.

If you have not yet taken steps to stop your periods to reduce the likelyhood of new endo appearing then do speak to your GPs as there are a number of ways to stop periods on a long term but temporary basis. All can be stopped if you need to restart periods for baby making purposes for example. They don't all suit all women which is why there is a large choice of options to work your way through, to find the one that suits you best.


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