Contraception Reviews

Cap or diaphragm vs Hormonal IUD

Cap or diaphragm

Want to switch birth control?

Hormonal IUD

Want to switch birth control?

Overview

Rated 3.7

3 reviews

Before sex

Frequency

71% - 94%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Rated 3.6

57 reviews

3 - 8 years

Frequency

Over 99%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Cap or diaphragm ingredients

A birth control diaphragm or cap is a reusable barrier method of birth control that is inserted into the vagina before sex. It is covered in spermicide (a gel that kills sperm) and prevents pregnancy by covering the cervix so sperm can’t get into the womb. There are a few things that can make the diaphragm or cap less effective. These include if it doesn't fit properly
you remove it too early
it is damaged
you forget to use spermicide
or it is used with other oil-based products. If these things happen you may need to use emergency birth control.

Hormonal IUD ingredients

Main hormones in Hormonal IUD

progestin

What Lowdown reviewers say

Mood

67% no impact on mood

Bleeds

100% no change

Sex drive

67% no impact

Weight

100% no impact

Skin

100% no impact on skin

Cycle return

Not enough data to say

Mood

44% no impact on mood

Bleeds

46% stopped periods

Sex drive

46% no impact

Weight

49% no impact

Skin

40% no impact on skin

Cycle return

50% in 1 month

Benefits: What this birth control can help with

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

Adenomyosis

Endometriosis

Heavy periods

Menopause

Period pain

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Want to switch birth control?

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Want to switch birth control?

Check out our latest reviews

Real life reviews from people like you

Cap or diaphragm reviews

3 reviews

Cap or diaphragm  
Used for 18 mo - 3 yr
24 years old
🇺🇸 US
  •  17th Apr 25

FemCap  

I’ve been using the FemCap for years now and honestly, I’m so impressed. It’s non-hormonal, super discreet, and once you get the hang of insertion, it’s incredibly easy to use. Highly recommend it to anyone looking for a hormone-free option.

Read more

Top side effects not reported

1 helpful

0 comments

Cap or diaphragm  
Used for 1 - 3 mo
36 years old
🇺🇸 US
  •  7th Jan 25

FemCap  

I had to come off hormonal contraception due to health reasons so needed a barrier method. It was quite awkward to insert and always had to keep checking it in case it dislodged itself, was sometimes painful or uncomfortable, my partner could feel it. I was also using an approved spermicide with it but still became pregnant within a month of use.


Somewhat negative mood

1 more effect

0 helpful

0 comments

Cap or diaphragm  
Used for 1 - 3 mo
Lowdown user
🇺🇸 US
  •  21st Sep 23

Caya  

My very favorite thing about the Caya is that there really are no side effects. I am not putting anything into my body that is changing the way my body functions- I put it in, leave it in a while, and then I remove it. No hormones, nothing! I’ve been advised that while the Caya can be 80+% effective when used correctly, it’s best to use it with spermicide and condoms. It is tricky to insert the first few times but super easy to remove and I quickly got the hang of a quick and easy insertion! I did find it really difficult to find a pharmacy that sold the Caya (I guess they aren’t as popular now)- but all in all, it’s been fantastic so far! I love that my body gets to function as it normally would but that the Caya helps prevent pregnancy


Top side effects not reported

0 helpful

0 comments

Cap or diaphragm  
Used for 18 mo - 3 yr
24 years old
🇺🇸 US
  •  17th Apr 25

FemCap  

I’ve been using the FemCap for years now and honestly, I’m so impressed. It’s non-hormonal, super discreet, and once you get the hang of insertion, it’s incredibly easy to use. Highly recommend it to anyone looking for a hormone-free option.


Top side effects not reported

1 helpful

0 comments

Cap or diaphragm  
Used for 1 - 3 mo
36 years old
🇺🇸 US
  •  7th Jan 25

FemCap  

I had to come off hormonal contraception due to health reasons so needed a barrier method. It was quite awkward to insert and always had to keep checking it in case it dislodged itself, was sometimes painful or uncomfortable, my partner could feel it. I was also using an approved spermicide with it but still became pregnant within a month of use.


Somewhat negative mood

1 more effect

0 helpful

0 comments

Cap or diaphragm  
Used for 1 - 3 mo
Lowdown user
🇺🇸 US
  •  21st Sep 23

Caya  

My very favorite thing about the Caya is that there really are no side effects. I am not putting anything into my body that is changing the way my body functions- I put it in, leave it in a while, and then I remove it. No hormones, nothing! I’ve been advised that while the Caya can be 80+% effective when used correctly, it’s best to use it with spermicide and condoms. It is tricky to insert the first few times but super easy to remove and I quickly got the hang of a quick and easy insertion! I did find it really difficult to find a pharmacy that sold the Caya (I guess they aren’t as popular now)- but all in all, it’s been fantastic so far! I love that my body gets to function as it normally would but that the Caya helps prevent pregnancy


Top side effects not reported

0 helpful

0 comments


Hormonal IUD reviews

57 reviews

Hormonal IUD  
Used for 6 - 12 mo
25 years old
🇺🇸 US
  •  today

Mirena IUD  

I have been on the marina for almost a year and every time I get my period I am in severe pain….. when I’m driving I have to pull over on the side of the road to spit up and hold my stomach. Today it was so bad. I had to call in early. I throw up most times…… moral of the story I’m getting it taken out


Top side effects not reported

0 helpful

0 comments

Hormonal IUD  
Used for 1 - 3 mo
26 years old
🇺🇸 US
  •  3 days ago

Skyla IUD  

I got the IUD put in and since then I have experienced intense nausea and frequent headaches.


Top side effects not reported

0 helpful

0 comments

Hormonal IUD  
Used for 1 - 3 mo
23 years old
🇺🇸 US
  •  2 weeks ago

Kyleena IUD  

I’ve only been on it for going on 3 weeks now. The first week was cramping and low back pain. Week 2 was nausea and hunger pains. I’m starting week 3 now and I’m working with my hunger, tiredness, and possibly some mood swings. So far I really like it. I don’t feel it, it doesn’t hurt or nothing.


Improved skin

0 helpful

0 comments

Hormonal IUD  
Used for 6 - 12 mo
25 years old
🇺🇸 US
  •  today

Mirena IUD  

I have been on the marina for almost a year and every time I get my period I am in severe pain….. when I’m driving I have to pull over on the side of the road to spit up and hold my stomach. Today it was so bad. I had to call in early. I throw up most times…… moral of the story I’m getting it taken out


Top side effects not reported

0 helpful

0 comments

Hormonal IUD  
Used for 1 - 3 mo
26 years old
🇺🇸 US
  •  3 days ago

Skyla IUD  

I got the IUD put in and since then I have experienced intense nausea and frequent headaches.


Top side effects not reported

0 helpful

0 comments

Hormonal IUD  
Used for 1 - 3 mo
23 years old
🇺🇸 US
  •  2 weeks ago

Kyleena IUD  

I’ve only been on it for going on 3 weeks now. The first week was cramping and low back pain. Week 2 was nausea and hunger pains. I’m starting week 3 now and I’m working with my hunger, tiredness, and possibly some mood swings. So far I really like it. I don’t feel it, it doesn’t hurt or nothing.


Improved skin

0 helpful

0 comments

Hormonal IUD  
Used for 1 - 3 mo
22 years old
🇺🇸 US
  •  19th May 25

Mirena IUD  

This is a test!


Very positive mood

3 more effects

0 helpful

0 comments

Hormonal IUD  
Used for 6 - 12 mo
31 years old
🇺🇸 US
  •  29th Apr 25

Mirena IUD  

Best decision ever made!


Top side effects not reported

10 helpful

0 comments

Hormonal IUD  
Used for 18 mo - 3 yr
21 years old
🇺🇸 US
  •  28th Apr 25

Kyleena IUD  

I got the Kyleena prescribed off-label to me after suffering from ridiculously heavy periods in my teens. I used to bleed 200mls+ on some periods and even Tranexamic acid didn’t help. This IUD has been an absolute life-saver and my periods are so much lighter. I will admit I have experienced some side effects - I used to have clear skin 95% of the time, however since the IUD I permanently have 1 or 2 pimples around my jawline which can be quite annoying. My periods are often very long now (7-11 days) despite being light which also gets frustrating. Those are the two main side effects I’ve experienced, but overall it’s been a positive experience.


Worse skin

10 helpful

0 comments

Hormonal IUD  
Used for 18 mo - 3 yr
21 years old
🇺🇸 US
  •  28th Apr 25

Kyleena IUD  

I got the Kyleena prescribed off-label for my heavy menstrual bleeding. I used to bleed sometimes over 200ml per period, even Tranexamic acid didn’t help. This IUD has been a life saver - my periods are so much lighter. Overall it’s been a positive experience. I won’t pretend it doesn’t have other side effects though. My periods are now way longer than they used to be (7-11 days) although not heavy at all. I also had clear skin 95% of the time prior to the IUD but now I permanently have one or two pimples around my jawline which can be pretty annoying.


Worse skin

11 helpful

0 comments

Hormonal IUD  
Used for 3 - 6 mo
20 years old
🇺🇸 US
  •  22nd Apr 25

Mirena IUD  

It actually stabilized my mood. I genuinely have no complaints.


Very positive mood

1 helpful

0 comments

Hormonal IUD  
Used for 5 - 8 yr
Lowdown user
🇺🇸 US
  •  20th Apr 25

Mirena IUD  

Irregular cycles. Mood swings, fatigue, brain fog and headaches seem to correlate to menstrual cycle. Effective birth control but still unsure if symptoms are related to Mirena or independent migraine, thyroid or other issues.


Somewhat negative mood

1 more effect

0 helpful

0 comments

Hormonal IUD  
Used for 6 - 12 mo
38 years old
🇺🇸 US
  •  20th Apr 25

Kyleena IUD  

I’m pretty pleased for the most part. It’s my 2nd IUD, first hormonal one. My periods are pretty much gone and I love that. They were pretty bad before. The downside is that my scalp sweats PROFUSELY with very little physical exertion and my face is super oily. So much so that I have several pimples along and into my hairline. I’m very upset about that. I’m on month 7 and the pimples just started, but the sweating and oil started almost right away.


Worse skin

1 more effect

1 helpful

0 comments

Birth control alternatives and comparisons

Compare the Cap or diaphragm with other birth control

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