Cap or diaphragm vs Injection

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Cap or diaphragm

Add your cap or diaphragm review

Injection

Add your Injection review

Overview

Rated 3.9

15 reviews

During or before sex

Frequency

84% - 94%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Rated 2.9

293 reviews

Every 2-3 months

Frequency

94% - 99+%

Effectiveness

None

Blood clot risk

Short term

Effect on fertility

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.

Injection ingredients

Main hormones in Injection

progestogen

What Lowdown reviewers say

87% no impact on mood

87% no change

93% no impact

100% no impact

80% no impact on skin

Cycle return

50% in 1 month

32% somewhat negative

70% stopped periods

56% lost sex drive

49% gained weight

47% no impact on skin

Cycle return

43% don’t know impact

Benefits: What this contraceptive can help with

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

Endometriosis

Heavy periods

Period pain

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Check out our latest reviews

Real life reviews from people like you

Cap or diaphragm reviews

15 reviews

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.

Read more

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 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


Injection reviews

293 reviews

Injection  
Used for 6 - 12 mo
25 years old
🇬🇧 UK
  •  1 month ago

Injection  

Side effects are bad


Worse skin

1 more effect

0 helpful

0 comments

Injection  
Used for 1 - 3 mo
34 years old
🇬🇧 UK
  •  6th Jul 25

Depo-Provera injection  

All women should really do the research before starting this medication. I have read quite a few stories online of women who have felt the same. I have basically felt like a completely different person. I am near on the end of one injection and I will not be going back for another. It’s absolutely ruined my relationship with my partner. I’ve been absolutely horrible to him and it’s only now I’m starting to realise just what this injection did to me. Thank goodness he’s so understanding and helped me through it because I was literally horrendous. Literally a few days after I had it I was a different person, I hated him. Everything he done annoyed me, I was rude and hurtful and I couldn’t control it. I would snap in and out of moods so badly that we named the other “person” Patrica. He was constantly walking on egg shells as he never knew which version he would get. I am so upset that I have felt this way in the last few months. So much so I was having suicidal thoughts. I pray that anyone doesn’t risk it because it’s been 3 months of hell for us.


Very negative mood

2 more effects

0 helpful

0 comments

Injection  
Used for 18 mo - 3 yr
25 years old
🇬🇧 UK
  •  3rd Jul 25

Depo-Provera injection  

This has been great for me helped regulate my moods no longer huge crashes i get around periods. Also it has completely stopped my periods which were heavy and painful, I get the occasional period pain leading up to when my injection is due but they are very very mild and don’t really effect me.


Very positive mood

1 more effect

0 helpful

0 comments

Injection  
Used for 6 - 12 mo
25 years old
🇬🇧 UK
  •  1 month ago

Injection  

Side effects are bad


Worse skin

1 more effect

0 helpful

0 comments

Injection  
Used for 1 - 3 mo
34 years old
🇬🇧 UK
  •  6th Jul 25

Depo-Provera injection  

All women should really do the research before starting this medication. I have read quite a few stories online of women who have felt the same. I have basically felt like a completely different person. I am near on the end of one injection and I will not be going back for another. It’s absolutely ruined my relationship with my partner. I’ve been absolutely horrible to him and it’s only now I’m starting to realise just what this injection did to me. Thank goodness he’s so understanding and helped me through it because I was literally horrendous. Literally a few days after I had it I was a different person, I hated him. Everything he done annoyed me, I was rude and hurtful and I couldn’t control it. I would snap in and out of moods so badly that we named the other “person” Patrica. He was constantly walking on egg shells as he never knew which version he would get. I am so upset that I have felt this way in the last few months. So much so I was having suicidal thoughts. I pray that anyone doesn’t risk it because it’s been 3 months of hell for us.


Very negative mood

2 more effects

0 helpful

0 comments

Injection  
Used for 18 mo - 3 yr
25 years old
🇬🇧 UK
  •  3rd Jul 25

Depo-Provera injection  

This has been great for me helped regulate my moods no longer huge crashes i get around periods. Also it has completely stopped my periods which were heavy and painful, I get the occasional period pain leading up to when my injection is due but they are very very mild and don’t really effect me.


Very positive mood

1 more effect

0 helpful

0 comments

Injection  
Used for 1 - 3 mo
27 years old
🇬🇧 UK
  •  26th Jun 25

Depo-Provera injection  

Things I’ve had history struggling with in the past: depression, anxiety, weight Things depo increased: depression, anxiety, weight


Very negative mood

1 more effect

0 helpful

0 comments

Injection  
Used for 1 - 3 mo
17 years old
🇬🇧 UK
  •  20th Jun 25

Noristerat injection  

im not gaining weight is that normal?


Top side effects not reported

0 helpful

0 comments

Injection  
Used for 1 - 3 mo
17 years old
🇬🇧 UK
  •  10th Jun 25

Noristerat injection  

started using it on April but so far my body is still the same & haven’t experienced breast enlargement yet


Top side effects not reported

0 helpful

0 comments

Injection  
Used for 8+ yr
30 years old
🇬🇧 UK
  •  28th May 25

Sayana Press injection  

Used for over 10 years, completely stopped my periods which was fantastic. The devices became harder and harder to use, needing a lot of force to inject so I ended up turning myself into a pin cushion & wasting a few, which made reordering a faff. Don’t think I gained weight and if anything my skin improved (but that could just be normal from teenage to late 20s). The only negative I noticed was decreased sex drive - but it didn’t totally go so not a massive issue for me.


Improved skin

1 more effect

0 helpful

0 comments

Injection  
Used for 18 mo - 3 yr
16 years old
🇬🇧 UK
  •  13th May 25

Sayana Press injection  

I was on this injection for 2 years, the whole process put me off . when i started the injection i had a period of 16 days (over two weeks) and it was so heavy, months went on and my periods stopped all together, i didn’t have a period for minus 2 years , i’m now on the combined pill but i did receive higher anxiety and depression towards taking it for ages, the doctor offered me antidepressants but i didn’t want to be taking them as i am a quite smily happy person but i literally lost all my energy and motivation to do anything.


Somewhat negative mood

3 more effects

0 helpful

0 comments

Injection  
Used for 18 mo - 3 yr
19 years old
🇬🇧 UK
  •  8th May 25

Noristerat injection  

With the contraception I experience a lot of abdominal pains frequently


Somewhat negative mood

3 more effects

0 helpful

0 comments

Injection  
Used for 1 - 3 mo
27 years old
🇬🇧 UK
  •  2nd May 25

Depo-Provera injection  

Worst decision I’ve ever made Gained a lot of weight Depressed Anxious Moods all over the place


Very negative mood

2 more effects

1 helpful

0 comments

Contraceptive alternatives and comparisons

Compare the Cap or diaphragm with other contraceptives

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