Hormonal coil (IUS) and breast enlargement

How our community feel they have been impacted by breast enlargement on hormonal coil (IUS)

Data is taken from self reported Lowdown user reviews

None or not sure

74%

A bit

14%

Quite a bit

7%

A lot

4%

A great deal

2%

Out of the 876 reviews for hormonal coil (IUS), 231 people (26%) reported breast enlargement.

Reviewers that reported breast enlargement as a side effect

Data is taken from self reported Lowdown user reviews

Used for 3 - 6 mo
24 years old
🇬🇧 UK
  •  3 weeks ago

Was on the injection for over 6 years and was advised to change due to adenomyosis diagnosis. Injection gifted me no periods for 6 years and I’ve still not had any sine changing to coil. Insertion was painful but 6/10 initially. Hot water bottle and pills helped. Cramping did occur infrequently for 2-3 weeks post insertion. Breasts have definitely enlarged and far more tender to touch, feel heavier and unfortunately don’t fit my bra’s anymore. 1st world problems. No issues during intimacy or post either. Other than the cramps, no complaints!

Read more

Somewhat positive mood

1 helpful

0 comments

Used for 18 mo - 3 yr
33 years old
🇬🇧 UK
  •  1 month ago

My first year of the coil seemed to be okay. Took a while to get used to and on the grand scheme of things after about 3 months my period pretty much left.. but in the last year, I’ve been getting symptoms of anger, forgetfulness and generally feeling checked out. Going to speak to GP to find another option.


Somewhat negative mood

2 more effects

1 helpful

0 comments

Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  6th Dec 25

Hard to tell if it’s improved but I definitely have breast tenderness


Improved skin

1 more effect

1 helpful

0 comments

Hormonal coil (IUS) common side effects

Data is taken from self reported Lowdown user reviews

62% of hormonal coil (IUS) reviewers reported period like cramps

43% of hormonal coil (IUS) reviewers reported tender breasts

39% of hormonal coil (IUS) reviewers reported vaginal discharge

29% of hormonal coil (IUS) reviewers reported lower back pain

26% of hormonal coil (IUS) reviewers reported breast enlargement


Possible hormonal coil (IUS) side effects

Data is taken from self reported Lowdown user reviews

Order online

Order online now

Use our online prescription in under 5 mins

  • No GP appointment needed

  • Free standard delivery

Speak to a doctor

Not sure yet? Speak to a doctor

Schedule an appointment now

87% of women are happier with their contraceptive choice after speaking with one of The Lowdown's doctors

The Lowdown Footer

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

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