Reviews
Mirena coil reviews
3.5
566 reviews
Every 8 years
Frequency
Over 99%
Effectiveness
None
Blood clot risk
None
Effect on fertility
Reviews
3.5
566 reviews
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Community reviews
Used for 3 - 6 mo
40 years old
🇬🇧 UK
• 2 days ago
I've had a mirena coil for about 7 months now. Before getting it I had severely heavy periods. Most months I got a bad migraine. My iron was low. The GP didn't suggest anything to help with the heavy periods/monthly migraines/low iron. However when discussing contraception mirena coil was suggested. (I'm 40, have had 2 children). I was wary to mess with my hormones but the doctor said it could calm down my periods too. It was a long wait (almost 12 months). As soon as I got it I haven't had such heavy periods. Migraines haven't been an issue and my iron levels are back to normal. I haven't noticed any mood or weight changes. I've been happier and healthier because I haven't been dealing with the bad periods anymore. My periods are irregular, but very light. The only negative is a couple of times I've had stomach cramps, quite painful ones, they've gone away in under a day. There has been no follow up with a health professional. It would be nice if they did this to reassure everything is normal and ok.
Top side effects not reported
0 helpful
0 comments
Used for 6 - 12 mo
35 years old
🇬🇧 UK
• 1 week ago
I had it put in at the end of January. Insertion wasn't fun and did hurt but no worse than the period cramps I used to get. Did spend the afternoon in bed. First few months were ok, some period pain but less than before and lighter periods. But as a few more months have passed I've been getting more migraines again. Also my body hair is more noticeable. My mood is mostly stable except now when I'm ovulating or period about to start, I get very irrational and angry. My last period was heavier than I would have had before the coil but hoping that was just a blip. Have also been spotting constantly the last 2-3 months.
Somewhat negative mood
2 more effects
0 helpful
0 comments
Used for 3 - 6 mo
38 years old
🇬🇧 UK
• 1 month ago
I got the coil fitted to control heavy periods with contraception as a bonus. I’m aware I might be still in the settling down phase, this is my experience so far. Fitting was uncomfortable but I’ve had 3 vaginal birth so nothing touches that! Cramps for a few days but settled down. So far I have been bleeding most of the time since having it fitted, not heavy, light, but constant and irregular patterns. Very annoying. Low self esteem and low mood. Weight gain, despite being more physically active and eating healthily. Increase in headaches and migraines. Generally unimpressed at the lack of connection with healthcare professionals and Mirena coil users. So many women reporting poor experience yet doctors aren’t relaying this information. Will be having it removed. I choose control over my body over convenience.
Somewhat negative mood
2 more effects
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0 comments
Used for 5 - 8 yr
43 years old
🇬🇧 UK
• 28th Jun 25
First 6 months is an adjustment period so I had plenty of headache and feeling sick but after a while my body used to it and I am fine. 100% contraception effectiveness and no heavy period.
Very positive mood
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Used for 18 mo - 3 yr
31 years old
🇬🇧 UK
• 21st Jun 25
Insertion was definitely a little more than just "uncomfortable', it was incredibly painful and emotionally felt very invasive. Took about a day or two to get over the cramps. Felt very faint the first night after having it inserted. Have had experience with SA before though and after telling the nurses they were incredibly supportive throughout the procedure. Side effects wise I got on pretty well for the first year. My periods did stop after a few months, which I found to be a bit strange as I like to track my cycle and I found this a bit strange at first, as I could feel my other symptoms of my cycle but felt a bit off kilter when I didn't have my usual period. Not having to worry about condoms or taking a pill everyday is great though. But after about a year of having the hormonal coil I've noticed my mood and mental health take a bit of a dip. I feel a bit like my emotions are just sitting a bit flatter, I'm a bit more irritable, I don't experience quite the same amount of joy as I used to. I do have a lot going on in life at the moment, but I can't help but notice day to day, even on good days, that I'm not as cheerful or reacting to things in the same way I used to. Emotionally not feeling like myself I don't feel is worth this,no I'm going to seek advice on whether to have this removed or not I think.
Somewhat negative mood
1 more effect
0 helpful
0 comments
Used for 12 - 18 mo
40 years old
🇬🇧 UK
• 18th Jun 25
So far I love the mirena coil! Insertion was definitely painful (not just “uncomfortable”!), but the pain was very brief. I had cramps for a couple of days, and then light bleeding/spotting for about a month. However since then I’ve had no periods, and don’t even know it’s there. I get a few more spots now but that’s from rarely getting any when I was on the pill, it’s not a lot. My weight has stayed exactly the same. I was terrified of getting it fitted but am so glad I did, if it continues like this then I will take 30 seconds of pain for 8 years of not having to think about contraception, no periods and no side effects!
Worse skin
0 helpful
0 comments
Used for 12 - 18 mo
24 years old
🇬🇧 UK
• 18th Jun 25
Had the coil for just over a year and bled daily (although only light). Only had a few days a month not bleeding
Somewhat negative mood
1 more effect
0 helpful
0 comments
Used for 3 - 5 yr
28 years old
🇬🇧 UK
• 12th Jun 25
Generally the Mirena has been great. Only noticed most of the side effects after 4 years having it in - and they’re still very manageable.
Decreased sex drive
1 more effect
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0 comments
Used for 6 - 12 mo
32 years old
🇬🇧 UK
• 1st Jun 25
I had the worst time on Mirena. I had a bad experience from day one at insertion - I found the whole experience so much more painful than I imagined that it would be - no one really prepares you for this. From the first day I started experiencing cramps and everyone said that they would ease up within no time however they did not. Month after month I experienced endless painful cramps and times where I would be doubled over in two on dates with my boyfriend - never have I had anything like that. As a girl, we very much always shut up and put up and I always felt like I could just push through it but there were times when it was really bad and I almost got it out, but you’d forget about it the next day as it’s such a good feeling to not have to Take a pill etc and it is very convenient. But it’s also crazy I actually had it in for as long as I did. I have never really had that bad periods and my bleeding was longer, the cramping much more intense and honestly just a whole lot worse than it was when I was off it. I didn’t really notice anything kind of sexually or from a weight or ski. perspective but I know that the cramping and the bleeding was enough for me to never touch this thing again. The Doctors kept telling me to hold out and just wait to see if it would change and it just never did. I would really recommend if you are having these symptoms any time past two months they are not going to get better and you’ll just continue to suffer. At the eight month mark I went and got it out and honestly it was the best thing I ever did. As soon as it was out, I felt like I could actually breathe again and havent suffered another cramp like it ever since (thank god!). I have gone back onto the mini pill now which I’m much more happy with - it does have some side-effects but nothing like that cramping!
Top side effects not reported
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Used for 18 mo - 3 yr
24 years old
🇬🇧 UK
• 30th May 25
I feel like myself, which I cannot say for other forms of BC I’ve used. The weight gain may have more to do with some lifestyle changes, but I enjoy the way my body look regardless. I was able to collaborate with my doctor to find suppositories to help with the dryness during sex and that in turn has helped with my libido. I cannot imagine using another form of birth control.
Improved skin
2 more effects
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0 comments
Mirena coil benefits
Some of the benefits that are recognised in scientific research or guidelines for this contraceptive
Adenomyosis
Endometriosis
Heavy periods
Menopause
Period pain
Mirena coil alternatives
Contraceptives that work in similar ways, or brands that have close or exactly the same hormonal ingredients