Side effects
Hormonal coil (IUS) common side effects
Data is taken from self reported Lowdown user reviews
62% of Hormonal coil (IUS) reviewers reported period like cramps
43% of Hormonal coil (IUS) reviewers reported tender breasts
40% of Hormonal coil (IUS) reviewers reported vaginal discharge
29% of Hormonal coil (IUS) reviewers reported lower back pain
26% of Hormonal coil (IUS) reviewers reported breast enlargement
Hormonal coil (IUS) rare side effects
Data is taken from self reported Lowdown user reviews
3% of Hormonal coil (IUS) reviewers reported discomfort wearing contact lenses
3% of Hormonal coil (IUS) reviewers reported high blood pressure
2% of Hormonal coil (IUS) reviewers reported a latex allergy
Possible Hormonal coil (IUS) side effects
Data is taken from self reported Lowdown user reviews
- Period like cramps (62%)
- Tender breasts (43%)
- Vaginal discharge (40%)
- Lower back pain (29%)
- Breast enlargement (26%)
- Vaginal dryness (22%)
- Thrush (20%)
- Body hair increase (18%)
- Sweating more than usual (16%)
- Nausea or vomiting (15%)
- Body hair getting darker (13%)
- Cystitis (12%)
- Headaches (10%)
- Migraines (6%)
- Pelvic infection (6%)
- Dizziness (6%)
- Migraine with aura (5%)
- Hair loss (4%)
- Discomfort wearing contact lenses (3%)
- High blood pressure (3%)
- A latex allergy (2%)
Reviews
3.5
847 reviews
Filter reviews
Community reviews
Used for 6 - 12 mo
32 years old
🇬🇧 UK
• 6 days ago
I swapped to the coil as I started getting migraines on the combined pill and wanted a longer term solution GP advised to give the coil 6 months to settle in but during that time my skin has gradually got worse with bad acne, I still have periods which are lighter granted but lasting 8-9 days, much worse periods cramps than on combined and then for last 2 months spotting almost everyday and bad period like cramping. GP thought these symptoms suggested coil displacement but USS confirmed it was in situ and these must just be the side effects I personally get from mirena. The cramping and constant spotting and acne is affecting my sex life and general mood day to day so trying to get the coil removed and tempted to try the copper coil (although I went for the Mirena as I’d read you can get the symptoms I’m currently having on the copper but only time will tell!)
Somewhat positive mood
2 more effects
0 helpful
0 comments
Used for 3 - 5 yr
33 years old
🇬🇧 UK
• 3 weeks ago
Had the Mirena coil for 4 years. Insertion wasn’t a fun experience but only cramped for a few days. A bit of spotting for first few months but reduced to nothing for the next 4 years. Very happy with it, only getting removed to get pregnant.
Somewhat positive mood
0 helpful
0 comments
Used for 6 - 12 mo
47 years old
🇬🇧 UK
• 3 weeks ago
I was told to take painkillers (paracetamol & ibuprofen) before the procedure which I did. For the procedure I had two lovely ladies who were supportive and talked me through all of the steps. I was offered pain relief including gas and air, so all of that was great. What I didn’t realise was the “bad period cramps” you are warned about were actually more like mild contractions, and having had a traumatic miscarriage a few years ago. The coil fitting unfortunately ended up triggering this trauma along with my anxiety, when I spoke to my GP they mentioned it was PTSD and that this can happen after a coil fitting. Afterwards the coil felt really uncomfortable for about 4 weeks where I could feel it inside me all the time and sometime it felt like it was scratching around in there! Also certain exercise & stretches were uncomfortable & often aggravated it leaving me in pain. My hormones were also all over the place on week 3 but that passed fairly quickly. I’ve had great support from the clinic and was referred to have an ultrasound to confirm it was in the correct place. On a more positive note I’ve only had one heavy bleed a week after it’d been fitted and no further bleeds and so far only spotting once. It’s now 11 months later and things have settled, so this is now working for me which is a relief.
Worse skin
1 more effect
0 helpful
0 comments
Used for 3 - 6 mo
26 years old
🇬🇧 UK
• 1 month ago
Had Mirena fitted to manage endometriosis after a laparoscopy. The period cramps felt worse than when I was on the contraceptive pill before the surgery. Also struggled with depression and low energy. Acne was about the same as before I started the contraceptive pill.
Very negative mood
1 more effect
0 helpful
0 comments
Used for 18 mo - 3 yr
23 years old
🇬🇧 UK
• 1 month ago
I really like the Mirena Coil, especially as the combined pill was my previous contraception which negatively affected my mood. I had a lot of spotting for the first month and now have the very occasional spotting, but it's great not having a period anymore.
Somewhat positive mood
1 more effect
0 helpful
0 comments
Used for 3 - 6 mo
40 years old
🇬🇧 UK
• 1 month 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 month 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 - 5 yr
29 years old
🇬🇧 UK
• 25th Jul 25
Year 1 was a lot of hormonal changes, strong random cramps and spotting (i had to get the position adjusted slightly about 8 months in), but the effect on my periods was almost immediate. Regular lighter periods with reduced cramps(outside of above) that no longer impacted my life negatively. It's a game changer. Once that all settled down, I was abel to start tracking my periods and moods and for the first time in my life knew when something was "outside the norm" and could get things checked out as they came. The positive impact outweighs the negative by far in my opinion. Peace of mind and regular light periods is absolutely worth it for someone who's emotions and hormones and periods have always affected negatively (before jaydess I'd pms what felt like 3 out of 4 weeks, cramp so hard id pass out and bled through so many clothes)
Somewhat positive mood
1 more effect
0 helpful
1 comments
Used for 3 - 6 mo
38 years old
🇬🇧 UK
• 11th Jul 25
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
0 helpful
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
0 helpful
0 comments