Hormonal coil (IUS) vs Cap or diaphragm

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Hormonal coil (IUS)

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Cap or diaphragm

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Overview

Rated 3.5

876 reviews

Every 3-8 years

Frequency

Over 99%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Rated 3.8

16 reviews

During or before sex

Frequency

84% - 94%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Hormonal coil (IUS) ingredients

Main hormones in Hormonal coil (IUS)

progestogen

Cap or diaphragm ingredients

A contraceptive diaphragm or cap is a circular dome made of thin soft silicone although they come in different shapes sizes and materials. You need to use it with a gel that kills sperm called spermicide. The most common active ingredient of spermicides is nonoxynol-9.

What Lowdown reviewers say

43% no impact on mood

46% stopped periods

47% no impact

59% no impact

54% no impact on skin

Cycle return

33% don’t know impact

88% no impact on mood

88% no change

94% no impact

100% no impact

83% no impact on skin

Cycle return

50% in 1 month

Benefits: What this contraceptive can help with

Adenomyosis

Endometriosis

Heavy periods

Menopause

Period pain

There are no benefits that are recognised in scientific research or guidelines for this contraceptive

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Check out our latest reviews

Real life reviews from people like you

Hormonal coil (IUS) reviews

876 reviews

Hormonal coil (IUS)  
Used for 8+ yr
50 years old
🇬🇧 UK
  •  1 month ago

Jaydess coil  

I had used the Mirena coil back to back post partum for 9 years very happily but my LEA meant I was only having withdrawal bleeds. After restoring bodyweight and menstruating naturally, I went back for Mirena but was given Jaydess. The insertion was more problematic and that she how I ended up with Jaydess over Mirena. I had irregular and more bleeding for the first 3 months but read the reviews on here to help me persevere. I was “angry” as on Mirena it was always so easy but then I wasn’t actually properly menstruating due to low energy availability (eating disorder) so I drew perhaps FALSE causation on Jaydess being wrong. I have very light but regular periods and my PME is definitely reduced. I’ve had it in a year and am very happy with it and my threads have stayed in place despite roughhousing which wasn’t always the case with the Mirena. I’m in no rush to have to it out even though I turn 50 this year.

Read more

Top side effects not reported

1 helpful

0 comments

Hormonal coil (IUS)  
Used for 18 mo - 3 yr
36 years old
🇬🇧 UK
  •  13th Jan 26

Levosert coil  

Had this for adenomyosis and the pain stopped for a while but its back again now so the side affects aren't worth it for me. Having it removed later today


Somewhat negative mood

2 more effects

1 helpful

0 comments

Hormonal coil (IUS)  
Used for 18 mo - 3 yr
31 years old
🇬🇧 UK
  •  13th Jan 26

Mirena coil  

I love my hormonal coil. I have had no side effects what-so-ever and my bleeding is regular but extremly light, only monthly spotting. I did have ongoing spotting for around the first 6 months but no issue at all since then and the spotting was worth it for the final result of minimal bleeding.


Top side effects not reported

1 helpful

0 comments

Hormonal coil (IUS)  
Used for 8+ yr
50 years old
🇬🇧 UK
  •  1 month ago

Jaydess coil  

I had used the Mirena coil back to back post partum for 9 years very happily but my LEA meant I was only having withdrawal bleeds. After restoring bodyweight and menstruating naturally, I went back for Mirena but was given Jaydess. The insertion was more problematic and that she how I ended up with Jaydess over Mirena. I had irregular and more bleeding for the first 3 months but read the reviews on here to help me persevere. I was “angry” as on Mirena it was always so easy but then I wasn’t actually properly menstruating due to low energy availability (eating disorder) so I drew perhaps FALSE causation on Jaydess being wrong. I have very light but regular periods and my PME is definitely reduced. I’ve had it in a year and am very happy with it and my threads have stayed in place despite roughhousing which wasn’t always the case with the Mirena. I’m in no rush to have to it out even though I turn 50 this year.


Top side effects not reported

1 helpful

0 comments

Hormonal coil (IUS)  
Used for 18 mo - 3 yr
36 years old
🇬🇧 UK
  •  13th Jan 26

Levosert coil  

Had this for adenomyosis and the pain stopped for a while but its back again now so the side affects aren't worth it for me. Having it removed later today


Somewhat negative mood

2 more effects

1 helpful

0 comments

Hormonal coil (IUS)  
Used for 18 mo - 3 yr
31 years old
🇬🇧 UK
  •  13th Jan 26

Mirena coil  

I love my hormonal coil. I have had no side effects what-so-ever and my bleeding is regular but extremly light, only monthly spotting. I did have ongoing spotting for around the first 6 months but no issue at all since then and the spotting was worth it for the final result of minimal bleeding.


Top side effects not reported

1 helpful

0 comments


Cap or diaphragm reviews

16 reviews

Cap or diaphragm  
Used for 1 - 3 mo
26 years old
🇬🇧 UK
  •  13th Dec 25

Cap or diaphragm  

I decided to invest in the Caya diaphragm since I was determined to find a non-hormonal method I could use that wouldn’t impact sex too much (I get irritation with condoms and the copper coil moved out of place pretty much immediately). I really wanted it to work but unfortunately it was way too uncomfortable during sex. It feels like there’s just way too much ‘stuff’ inside me. And I think it obstructs my natural wetness (I suspect that’s why some people mention a lot of discharge upon removal). My partner also said while he could definitely feel it, it wasn’t uncomfortable. I’d choose condoms over the diaphragm unfortunately. Hope this helps :)


Top side effects not reported

0 helpful

0 comments

Cap or diaphragm  
Used for 3 - 6 mo
27 years old
🇬🇧 UK
  •  6th Apr 25

Cap or diaphragm  

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

Cap or diaphragm  
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
  •  13th May 24

Cap or diaphragm  

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

Cap or diaphragm  
Used for 1 - 3 mo
26 years old
🇬🇧 UK
  •  13th Dec 25

Cap or diaphragm  

I decided to invest in the Caya diaphragm since I was determined to find a non-hormonal method I could use that wouldn’t impact sex too much (I get irritation with condoms and the copper coil moved out of place pretty much immediately). I really wanted it to work but unfortunately it was way too uncomfortable during sex. It feels like there’s just way too much ‘stuff’ inside me. And I think it obstructs my natural wetness (I suspect that’s why some people mention a lot of discharge upon removal). My partner also said while he could definitely feel it, it wasn’t uncomfortable. I’d choose condoms over the diaphragm unfortunately. Hope this helps :)


Top side effects not reported

0 helpful

0 comments

Cap or diaphragm  
Used for 3 - 6 mo
27 years old
🇬🇧 UK
  •  6th Apr 25

Cap or diaphragm  

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

Cap or diaphragm  
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
  •  13th May 24

Cap or diaphragm  

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

Cap or diaphragm  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  1st Jan 24

Cap or diaphragm  

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

Cap or diaphragm  
Used for 6 - 12 mo
Lowdown user
🇬🇧 UK
  •  14th Feb 23

Cap or diaphragm  

I used the caya cap. It has been a game changer after previously taking the pill. I feel in control, no need to remember to take a pill, just put it in when needed. Better than condoms as it is women based and not detectable. Effect of not taking hormonal contraceptives has been amazing. All the side effects that I had ( migraines, reduced sex drive, dryness, breast tenderness, strong period pains, breakthrough bleeding and emotionalness) all gone. I wish someone had told me about it before!


Very positive mood

2 more effects

1 helpful

1 comments

Cap or diaphragm  
Used for 1 - 3 mo
Lowdown user
🇬🇧 UK
  •  2nd Dec 22

Cap or diaphragm  

Having experienced terrible physical and mental health side effects from both types of contraceptive pill (Combined and POP), and permanent pain and repeated UTIs with the copper coil, I hoped that Caya diaphragm would be a suitable non-hormonal method to try. Unfortunately, I found insertion very tricky - it seems I have a case of "deep vagina, small fingers", as I could never tell whether I'd pushed the diaphragm up far enough to cover my cervix, and sex was always a bit uncomfortable. I'm naturally prone to cystitis and thrush, and getting both while using the diaphragm also put me off using it long term. However, on the plus side - I didn't get pregnant (though I was still breastfeeding a lot, and my periods hadn't yet returned postpartum), and I did manage to avoid the hormonal depression, skin changes and weight gain/loss that I've experienced in the past with pills.


Top side effects not reported

3 helpful

1 comments

Cap or diaphragm  
Used for 1 - 3 mo
Lowdown user
🇬🇧 UK
  •  12th May 21

Cap or diaphragm  

All in all it was acceptable


Top side effects not reported

1 helpful

0 comments

Cap or diaphragm  
Used for 3 - 6 mo
Lowdown user
🇬🇧 UK
  •  23rd Aug 19

Cap or diaphragm  

Fiddly and a faff. Didn’t bother a couple of times and ended up pregnant. He’s nearly 20 now and I’m still married to his father so not all bad :) Tried the copper coil for a bit after but it gave me very heavy periods and stomach cramps which had never been a problem before. Switched to the mirena coil and now on my third - no periods for 15 years and no menopausal symptoms despite being 52. What’s not to like?


Top side effects not reported

1 helpful

0 comments

Cap or diaphragm  
Used for 1 - 3 mo
Lowdown user
🇬🇧 UK
  •  21st Aug 19

Cap or diaphragm  

I was only using it shortly, as I wanted to avoid hormones. It was not bad, but the need of using a spermicide as well was the reason why I stopped, I had vaginal discharge caused by the spermicide.


Top side effects not reported

0 helpful

0 comments

Cap or diaphragm  
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
  •  20th Aug 19

Cap or diaphragm  

A bit fiddly until I got used to it.


Top side effects not reported

0 helpful

0 comments

Contraceptive alternatives and comparisons

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