Cap or diaphragm vs Copper coil (IUD)
Need help choosing? Speak to a doctor
Add your cap or diaphragm review
Add your Copper coil (IUD) review
Overview
Rated 3.9
15 reviews
During or before sex
Frequency
84% - 94%
Effectiveness
None
Blood clot risk
None
Effect on fertility
Rated 3.5
589 reviews
5 - 10 years
Frequency
Over 99%
Effectiveness
None
Blood clot risk
None
Effect on fertility
Cap or diaphragm ingredients
Copper coil (IUD) ingredients
What Lowdown reviewers say
Benefits: What this contraceptive can help with
There are no benefits that are recognised in scientific research or guidelines for this contraceptive
There are no benefits that are recognised in scientific research or guidelines for this contraceptive
Try it now
Add your cap or diaphragm review
Try it now
Add your Copper coil (IUD) review
Check out our latest reviews
Real life reviews from people like you
Cap or diaphragm reviews
15 reviews
Used for 3 - 6 mo
27 years old
🇬🇧 UK
• 1 month ago
I’ve enjoyed using the cap around my fertile window but struggle to feel 100% confident I have inserted it correctly. When removing the cap I notice a lot of discharge but not after use, only when removing. Way better than the pill or condoms for me.
Top side effects not reported
0 helpful
0 comments
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
• 13th May 24
Apart from the issue I'm currently dealing with (it getting stuck inside of me), I LOVE the diaphragm. I found out I wasn't never fitted (which is why it kept getting stuck upon removal), so my new, awesome doctor actually sized me. It's easier than popping in a tampon once you learn how to do it and then ya pop it out the morning after sex. No side effects, no hormones, no emotional hangover. It's very hard to find though. Pharmaceutical companies don't want women to buy one silicone object that lasts for the rest of your life, so finding the right size and actually getting it has been a challenge. My mom used it and only got pregnant to have me (her only child) and I've been using it for 5+ years with no issues.
Top side effects not reported
0 helpful
0 comments
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
• 1st Jan 24
I've used Caya several times over the past couple years (they last up to 2 years- due for a new one now). I use it on the edges of my fertile window (with fertility awareness) and/or combined with withdrawal or condoms to boost efficacy during the fertile window. Always use with Caya/Contragel- they come with an applicator to re-insert the gel into the vagina, as you need to reapply the gel each time you have sex. Watching the YouTube instructions on how to put it in (plus the instruction manual in the box!) helped me understand how to use it properly and to have an idea of how it was inserted properly.
Top side effects not reported
2 helpful
2 comments
Used for 3 - 6 mo
27 years old
🇬🇧 UK
• 1 month ago
I’ve enjoyed using the cap around my fertile window but struggle to feel 100% confident I have inserted it correctly. When removing the cap I notice a lot of discharge but not after use, only when removing. Way better than the pill or condoms for me.
Top side effects not reported
0 helpful
0 comments
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
• 13th May 24
Apart from the issue I'm currently dealing with (it getting stuck inside of me), I LOVE the diaphragm. I found out I wasn't never fitted (which is why it kept getting stuck upon removal), so my new, awesome doctor actually sized me. It's easier than popping in a tampon once you learn how to do it and then ya pop it out the morning after sex. No side effects, no hormones, no emotional hangover. It's very hard to find though. Pharmaceutical companies don't want women to buy one silicone object that lasts for the rest of your life, so finding the right size and actually getting it has been a challenge. My mom used it and only got pregnant to have me (her only child) and I've been using it for 5+ years with no issues.
Top side effects not reported
0 helpful
0 comments
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
• 1st Jan 24
I've used Caya several times over the past couple years (they last up to 2 years- due for a new one now). I use it on the edges of my fertile window (with fertility awareness) and/or combined with withdrawal or condoms to boost efficacy during the fertile window. Always use with Caya/Contragel- they come with an applicator to re-insert the gel into the vagina, as you need to reapply the gel each time you have sex. Watching the YouTube instructions on how to put it in (plus the instruction manual in the box!) helped me understand how to use it properly and to have an idea of how it was inserted properly.
Top side effects not reported
2 helpful
2 comments
Copper coil (IUD) reviews
589 reviews
Used for 3 - 6 mo
27 years old
🇬🇧 UK
• 1 day ago
The copper coil hurt the first day of insertion but then immediately settled. My periods have become slightly heavier and cramps a bit more painful but still very manageable with just paracetamol and ibuprofen. I am lucky in that my periods only last 4-5 days anyway. My moods change with a normal cycle pattern, I get some acne during my luteal phase. I love having protection but not having the negative impacts on my MH like hormonal contraception had. Would recommend.
Somewhat positive mood
0 helpful
0 comments
Used for 3 - 6 mo
29 years old
🇬🇧 UK
• 2 days ago
It's so hard finding contraception that doesn't have side effects and I wanted a hormone free form, so opted for copper IUD. Insertion is manageable, with painkillers beforehand. The first period was tough, I invested in a tens machine pad but the cramps were hard, but not worse than the worst period I've had. Second period non existent, literally three days and barely any blood, but third was heavy and lasted for 10 days. I stopped using the coil not because of any of this alone, but because I'm sure the inflammation in my body was making me uncharacteristically anxious. So hard to put my finger on, but since I got it removed it's been a weight off my shoulders. I'm now worrying that hormonal IUD will make me more anxious, and I haven't had it put in yet. It's overall not been too awful- I wouldn't not recomend it but I had it put in for emergency contraception so hoping there is a better solution out there without the anxiety side effects.
Somewhat negative mood
0 helpful
0 comments
Used for 18 mo - 3 yr
24 years old
🇬🇧 UK
• 3 days ago
Really liked this. Tried hormonal methods and ended up having a negative experience with them so had a go at this one. Works great. Most problems stopped after 6 months, like heavier bleeds and back pain etc. Eventually got down back to normal but it takes time to adjust. Genuinely made my life so much better, sex is great and I don't need to worry about hormones or my menstural cycle.
Very positive mood
1 more effect
0 helpful
0 comments
Used for 3 - 6 mo
27 years old
🇬🇧 UK
• 1 day ago
The copper coil hurt the first day of insertion but then immediately settled. My periods have become slightly heavier and cramps a bit more painful but still very manageable with just paracetamol and ibuprofen. I am lucky in that my periods only last 4-5 days anyway. My moods change with a normal cycle pattern, I get some acne during my luteal phase. I love having protection but not having the negative impacts on my MH like hormonal contraception had. Would recommend.
Somewhat positive mood
0 helpful
0 comments
Used for 3 - 6 mo
29 years old
🇬🇧 UK
• 2 days ago
It's so hard finding contraception that doesn't have side effects and I wanted a hormone free form, so opted for copper IUD. Insertion is manageable, with painkillers beforehand. The first period was tough, I invested in a tens machine pad but the cramps were hard, but not worse than the worst period I've had. Second period non existent, literally three days and barely any blood, but third was heavy and lasted for 10 days. I stopped using the coil not because of any of this alone, but because I'm sure the inflammation in my body was making me uncharacteristically anxious. So hard to put my finger on, but since I got it removed it's been a weight off my shoulders. I'm now worrying that hormonal IUD will make me more anxious, and I haven't had it put in yet. It's overall not been too awful- I wouldn't not recomend it but I had it put in for emergency contraception so hoping there is a better solution out there without the anxiety side effects.
Somewhat negative mood
0 helpful
0 comments
Used for 18 mo - 3 yr
24 years old
🇬🇧 UK
• 3 days ago
Really liked this. Tried hormonal methods and ended up having a negative experience with them so had a go at this one. Works great. Most problems stopped after 6 months, like heavier bleeds and back pain etc. Eventually got down back to normal but it takes time to adjust. Genuinely made my life so much better, sex is great and I don't need to worry about hormones or my menstural cycle.
Very positive mood
1 more effect
0 helpful
0 comments
Used for 18 mo - 3 yr
25 years old
🇬🇧 UK
• 3 weeks ago
Seriously heavy periods (wearing nightime pads and a tampon and still bleeding through my clothes in like an hour) and sometimes extruciating cramping. A lot of spotting between periods also which I've never experienced before. Nurse has told me that the coil should not affect my bleeding and I've gone straight from the mini pill to this so it may have been that the pill was improving my regular symptoms more than I realised.
Decreased sex drive
1 more effect
0 helpful
0 comments
Used for 18 mo - 3 yr
32 years old
🇬🇧 UK
• 3 weeks ago
I chose to have the copper IUD inserted in January 2023 because I'd had a bad experience previously with the mini pill (mood swings, decreased libido, and vaginal dryness) and I wanted to try a non-hormonal contraception. The process of getting it inserted was one of the most painful things I've ever experienced with severe pain, cramps, and dizziness. The doctor and nurse I had were wonderful and very reassuring, which made the process slightly easier. I would however, highly recommend anyone thinking of getting it to ask for pain relief if it's available. I'm certain it would have made the process much better and less traumatic for me. What followed was 6 months of intense cramping and spotting at random times of the month and extremely painful, heavy, and long (between 10-12 days) periods (I was lucky to have very light periods before going on any contraception which is one of the reasons I opted for the copper IUD). After 6 months or so my periods settled down to become shorter (5-6 days) and more regular but remained extremely heavy with lots of dark blood clots and severe cramping/back pain - to the point where I would have to take days off work and couldn't exercise normally because I felt sick/dizzy from the pain. The severe cramps started like clockwork on the 7th day before my period was due and continued until the end of my period meaning I was having up to two weeks a month of severe cramping. I also experienced cramps and thick, brownish discharge/spotting around ovulation. Other than the heavy, painful periods, I experienced none of the mood swings, weight gain, or loss of libido that I'd experienced on hormonal contraception, so the copper IUD was great for that. If anything, I experienced a notable increase in my libido! I chose to have the IUD removed about two weeks ago, after just over two years, because I was finding it increasingly difficult to cope with the intensely painful cramps and heavy bleeding and I developed severe iron deficiency anemia, likely due to my heavier periods. I was nervous about the removal process after finding the insertion process so difficult but it was significantly less painful and super quick. I had some light spotting afterward and some minor cramps but nothing too bad. I'm yet to have a period after removal and I'm, so far, two days late (confirmed not pregnant). I would normally have had at least a week of intensely painful cramps by now but so far, nothing. Overall, the copper IUD was great at the times of the month I wasn't bleeding or ovulating and I liked not having any of the side effects that come with hormonal birth control, but it ultimately wasn't worth the heavy and painful periods/iron deficiency anemia for me!
Somewhat negative mood
0 helpful
0 comments
Used for 1 - 3 mo
30 years old
🇬🇧 UK
• 26th Mar 25
This post is for those considering the copper IUD. I know it is scary and you can find many horror stories online, so I thought I make the effort and share my IUD journey with you which has been very positive. Insertion: Got the IUD on the 4th February Insertion was uncomfortable and for a few seconds very painful but it did go away very quickly. I did bleed a little bit as well but I always do when they are examining my cervix. I’m very sensitive down there. Note:I have never given birth and my GP said that it can be more painful for those who never given birth vaginally. The GP who did the insertion was absolutely brilliant. She talked me through what she was doing and she prepared me for the most painful part. There was also a nurse present who was literally holding my hand through the whole procedure. It was such a positive experience. I’m grateful for both of them for making this experience so manageable. Right after insertion: I wasn’t in pain afterwards - I only had a mild sense of discomfort like you would have after a smear test. I even went for an hour walk right after the procedure, so it was really not bad at all. Please note that I’m a physically active person, so walking for an hour doesn’t tax me much. Others might have different experiences and it’s absolutely fine if you just go home and rest in bad for the rest of the day. That’s what i was told to do to be fair. Days After insertion: The cramping was moderately bad after the next 4-5 days, spotting was light After the 4-5 days cramping intensified especially after exercise and at some point the pain made it difficult to walk. Never felt cramping like that before. It made me very irritated as well. Normal painkillers didn’t work, I had to take cocodamol to get some relief but it was short term. Later it turned out that it coincided with my PMS. I was bleeding everyday after insertion, so it was hard to determine what was menstrual bleeding or bleeding because of the IUD insertion. Around day 11 cramping settled significantly. I only had occasional cramps which don’t require pain killers. I think I got my period on day 12 (16th Feb or 15th Feb) because the bleeding intensified around that time. It is the 17th February today. Moderate bleeding (more than usual but moderate) very light cramping. Fast forward March. After my period in February, I did not experience anymore unusual cramping - even after exercise. I got my period on the 9th of March. I did have some light cramping and mood changes as PMS but nothing unusual. The cramping was very moderate and did not require painkillers. Bleeding lasted 6 days with 3 days of heavier bleeding -3 pads a day- which for me is heavy bleeding. I have had sex a few times since insertion and my partner couldn’t feel the strings, so no problem there. Did not experience any dryness and my sex drive during ovulation is definitely higher than when I was on the pill. Overall very happy with my wee copper coil. 😊 Just a reminder that negative stories often get more attention than they deserve—people are more likely to vent about bad experiences than take the time to share positive ones Will keep you updated!
Very positive mood
1 more effect
1 helpful
0 comments
Used for 1 - 3 mo
28 years old
🇬🇧 UK
• 13th Mar 25
I’m writing this purely because of how terrified I was going to get the coil after all the horror stories I read about on here. If you are prepared the insertion is an absolute walk in the park. I took 2 feminax and 2 paracetamol about 45 minutes before my appointment, chose the local anaesthetic (call in advance to check you can get this!) - I literally hardly felt the anaesthetic at all and then the insertion is like sudden onset of moderate period pain but again it was nothing as bad as I was expecting!! The 24 hours after I kept using the pain relief tablets and I haven’t needed to use it since. A tiny bit of bleeding since which I think will continue for a few days but that’s it. If this fear of the insertion is what’s stopping you from getting either coil please read this! I almost didn’t get it because of the anxiety I had around fainting / extreme pain etc. that I read about. Eat before, take pain relief and get the local anaesthetic and you will be so fine
Very positive mood
0 helpful
0 comments
Used for 1 - 3 mo
30 years old
🇬🇧 UK
• 6th Mar 25
I got my gynefix mini online and had it inserted at the John Hunter clinic in London. I had paraguard before which gave me terrible cramps and incredibly heavy periods: I had Jaydess for 3 years which gave low but manageable mood but I started having terrible back pains either it. Once I had it removed, back pains stopped. I didn’t use anything for a while and then tried the implant, which was awful! It gave me terrible mood swings and anger! Went back to jaydess and back pains returned and low mood. I started looking for other options and found gynefix and I am so glad I did! Insertion was painful and my periods are significantly heavier but nothing I can’t live with. No back-pains, no horrible craps and no mood effects! Thank you whoever created this! I really forget it is there and only sometimes can slightly feel it, but this is by far the best contraception I’ve tried! It was hard to find a dr to get it fitted and I had to order it myself as NHS don’t supply it, but worth it!
Very positive mood
0 helpful
0 comments
Used for 1 - 3 mo
35 years old
🇬🇧 UK
• 24th Feb 25
I have possible adenomyosis and this coil was only temporary as emergency contraception to then get switched to the mirena but my second period has been lighter and much less painful than before so I'm considering waiting to see how this goes. I don't get hormonal migraines either
Somewhat positive mood
1 more effect
0 helpful
0 comments
Used for 3 - 5 yr
21 years old
🇬🇧 UK
• 19th Feb 25
Amazing option for non-hormonal contraception. Yes it does hurt a lot to insert & my period is heavier but i think it outweighs any mental/physical changes other options have. My biggest & only issue is thrush! I get it every single month and no one warned me. Looking to get this sorted because it’s become a challenge and so frustrating.
Top side effects not reported
0 helpful
0 comments

Women's health, reviewed.
Get the best women’s health info in your inbox
You are signing up to receive The Lowdown's latest findings and news in women's health. Your data will be used in accordance with our Privacy & Cookie policy
Slide into our DMs
Built by doctors and experts
Our tools are made by medical professionals for your peace of mind
Our website uses affiliate links and we may earn a small commission if you click on them