Side effects
Kyleena IUD common side effects
Data is taken from self reported Lowdown user reviews
Period like cramps
72% of Kyleena IUD reviewers reported period like cramps
Headaches
56% of Kyleena IUD reviewers reported headaches
Lower back pain
52% of Kyleena IUD reviewers reported lower back pain
Tender breasts
44% of Kyleena IUD reviewers reported tender breasts
Sweating more than usual
40% of Kyleena IUD reviewers reported sweating more than usual
Kyleena IUD rare side effects
Data is taken from self reported Lowdown user reviews
4% of Kyleena IUD reviewers reported discomfort wearing contact lenses
4% of Kyleena IUD reviewers reported a latex allergy
4% of Kyleena IUD reviewers reported thrush
Possible Kyleena IUD side effects
Data is taken from self reported Lowdown user reviews
- Period like cramps (72%)
- Headaches (56%)
- Lower back pain (52%)
- Tender breasts (44%)
- Sweating more than usual (40%)
- Breast enlargement (36%)
- Nausea or vomiting (32%)
- Dizziness (32%)
- Vaginal discharge (32%)
- Migraines (32%)
- Vaginal dryness (24%)
- Hair loss (24%)
- Body hair getting darker (20%)
- Migraine with aura (12%)
- High blood pressure (12%)
- Body hair increase (12%)
- Cystitis (8%)
- Pelvic infection (8%)
- Discomfort wearing contact lenses (4%)
- A latex allergy (4%)
- Thrush (4%)
Reviews
3.3
25 reviews
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Community reviews
Used for 18 mo - 3 yr
Lowdown user
🇺🇸 US
• 4 days ago
It's ok. No unplanned pregnancy but my periods last for 2-3 weeks and I gained 25lbs in 2 years with no changes to eating habits.
Improved skin
2 more effects
0 helpful
0 comments
Used for 6 - 12 mo
27 years old
🇺🇸 US
• 1 month ago
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
Used for 3 - 6 mo
20 years old
🇺🇸 US
• 11th Aug 25
Do not recommend if you’re prone to headaches or migraines loss of appetite from being nauseous
Decreased sex drive
0 helpful
0 comments
Used for 18 mo - 3 yr
26 years old
🇺🇸 US
• 9th Jul 25
TLDR: -If you struggle with PMS already, please ask your doctor about the effects progesterone only birth control can have. I wish I had known that it can make it worse. -Expect new kinds of cramps. For me it was lightning rectum pain
Very negative mood
0 helpful
0 comments
Used for 1 - 3 mo
23 years old
🇺🇸 US
• 11th Jun 25
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
Used for 18 mo - 3 yr
21 years old
🇺🇸 US
• 28th Apr 25
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
Used for 18 mo - 3 yr
21 years old
🇺🇸 US
• 28th Apr 25
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
Used for 6 - 12 mo
38 years old
🇺🇸 US
• 20th Apr 25
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
Used for 1 - 3 mo
46 years old
🇺🇸 US
• 4th Jan 25
Top side effects not reported
0 helpful
0 comments
Used for 3 - 6 mo
Lowdown user
🇺🇸 US
• 23rd Oct 24
Didn't use it long enough to really form an opinion yet, but the reason I got it in the first place was because of very heavy periods and cramps. It has helped with that.
Somewhat negative mood
0 helpful
0 comments