Contraception Reviews

Hormonal IUD vs Cap or diaphragm

Hormonal IUD

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Cap or diaphragm

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Overview

Rated 3.6

66 reviews

3 - 8 years

Frequency

Over 99%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Rated 3.7

3 reviews

Before sex

Frequency

71% - 94%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Hormonal IUD ingredients

Main hormones in Hormonal IUD

progestin

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.

What Lowdown reviewers say

Mood

39% no impact on mood

Bleeds

44% stopped periods

Sex drive

42% no impact

Weight

49% no impact

Skin

46% no impact on skin

Cycle return

50% in 1 month

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

Benefits: What this birth control can help with

Adenomyosis

Endometriosis

Heavy periods

Menopause

Period pain

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

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Check out our latest reviews

Real life reviews from people like you

Hormonal IUD reviews

66 reviews

Hormonal IUD  
Used for 6 - 12 mo
Lowdown user
🇺🇸 US
  •  6 days ago

Hormonal IUD  

Went on the IUD bc I had super painful periods. Modena stopped my period and once a month now I’ll have just a little bit of phantom cramps—but none that ever pose an issue. The first month was quite painful adjusting to the IUD, but COMPLETELY worth it in the end. Only negative side effect I’m experiencing is vaginal dryness. Vaginal discharge has decreased and when I’m with my partner, no matter how aroused I am, I’m still pretty dry.

Read more

Somewhat positive mood

1 more effect

0 helpful

0 comments

Hormonal IUD  
Used for 6 - 12 mo
27 years old
🇺🇸 US
  •  3 weeks ago

Kyleena IUD  

I'm almost 28 years old, have had periods for the last decade and a half. They have always been regular and heavy to the point that if I didn't take iron supplements 5x a week and tranexamic acid during my periods, I'd have anemia. So I got Kyleena in December 2024. Insertion was fine, some cramping but nothing too serious. I had cramping on and off during the times my periods were supposed to come and some spotting/bleeding, but it was usually what I saw towards the beginning of my cycle. I had one reduced-level period in mid-August. I have had to go from 36D to 36DD to 36DDD/38DD bras over the span of a few months. At first I thought it was just weight gain (went from 170 to 195lb), but I have been almost 200lb before and my breast size increased this much this quickly. Even after losing 10 pounds my breast size has shown little to no decrease. I hate it. I also suspect that the IUD influenced my sciatica in my lumbar spine, which began in February 2025 and has taken several weeks of PT and a round of oral steroids to resolve. I am still not up to 100% all these months later. Overall a 2/5. The decreased period length, flow, and frequency is almost not enough to justify having this torture device in. If I get pregnant w/this in, I'll be so angry.


Somewhat negative mood

1 more effect

1 helpful

0 comments

Hormonal IUD  
Used for 18 mo - 3 yr
36 years old
🇺🇸 US
  •  1st Sep 25

Hormonal IUD  

I've had horrible bloating. From when I wake up till I go to bed my clothing size changes up to two pant sizes because of the bloating depending on what I eat. As in it's so much worse with things like potatoes. I've had to switch to basically only wearing stretchy clothes because it gets so bad.


Somewhat negative mood

2 more effects

1 helpful

0 comments

Hormonal IUD  
Used for 6 - 12 mo
Lowdown user
🇺🇸 US
  •  6 days ago

Hormonal IUD  

Went on the IUD bc I had super painful periods. Modena stopped my period and once a month now I’ll have just a little bit of phantom cramps—but none that ever pose an issue. The first month was quite painful adjusting to the IUD, but COMPLETELY worth it in the end. Only negative side effect I’m experiencing is vaginal dryness. Vaginal discharge has decreased and when I’m with my partner, no matter how aroused I am, I’m still pretty dry.


Somewhat positive mood

1 more effect

0 helpful

0 comments

Hormonal IUD  
Used for 6 - 12 mo
27 years old
🇺🇸 US
  •  3 weeks ago

Kyleena IUD  

I'm almost 28 years old, have had periods for the last decade and a half. They have always been regular and heavy to the point that if I didn't take iron supplements 5x a week and tranexamic acid during my periods, I'd have anemia. So I got Kyleena in December 2024. Insertion was fine, some cramping but nothing too serious. I had cramping on and off during the times my periods were supposed to come and some spotting/bleeding, but it was usually what I saw towards the beginning of my cycle. I had one reduced-level period in mid-August. I have had to go from 36D to 36DD to 36DDD/38DD bras over the span of a few months. At first I thought it was just weight gain (went from 170 to 195lb), but I have been almost 200lb before and my breast size increased this much this quickly. Even after losing 10 pounds my breast size has shown little to no decrease. I hate it. I also suspect that the IUD influenced my sciatica in my lumbar spine, which began in February 2025 and has taken several weeks of PT and a round of oral steroids to resolve. I am still not up to 100% all these months later. Overall a 2/5. The decreased period length, flow, and frequency is almost not enough to justify having this torture device in. If I get pregnant w/this in, I'll be so angry.


Somewhat negative mood

1 more effect

1 helpful

0 comments

Hormonal IUD  
Used for 18 mo - 3 yr
36 years old
🇺🇸 US
  •  1st Sep 25

Hormonal IUD  

I've had horrible bloating. From when I wake up till I go to bed my clothing size changes up to two pant sizes because of the bloating depending on what I eat. As in it's so much worse with things like potatoes. I've had to switch to basically only wearing stretchy clothes because it gets so bad.


Somewhat negative mood

2 more effects

1 helpful

0 comments


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.


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

2 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

2 helpful

0 comments

Birth control alternatives and comparisons

Compare the Hormonal IUD with other birth control

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