When comparing Mirena vs Implanon, most people want to know which method is more effective, how they differ, and which one fits their body and lifestyle best. Both are long-acting, highly reliable forms of hormonal contraception but they work in different ways and come with unique benefits. This guide breaks down Mirena vs Implanon so you can make an informed decision, includes professional insight, and features real women’s experiences with each option.
If you’re trying to quickly understand the differences between Mirena vs Implanon, the comparison below breaks it down clearly. This visual guide highlights the key benefits and potential drawbacks of each option side by side, helping you see how they compare at a glance before exploring effectiveness, expert advice, and real women’s experiences in more detail.
| Mirena | Implanon |
|---|---|
| The Mirena is a hormonal intrauterine device (IUD) placed inside the uterus. | Implanon (a.k.a. Nexplanon) is a small flexible rod inserted under the skin of the upper arm. |
| Type: IUD (intrauterine device) | Type: subdermal implant |
| Hormone: Levonorgestrel (a progestin) | Hormone: Etonogestrel (a progestin) |
| Duration: Up to 8 years | Duration: Up to 3 years |
| How it works: – Thickens cervical mucus – Thins uterine lining – May suppress ovulation in some users | How it works: – Primarily suppresses ovulation – Thickens cervical mucus |
| Benefits: – Extremely low maintenance (once inserted) – Can significantly lighten periods (or actually stop them) – Often prescribed for heavy menstrual bleeding or painful periods | Benefits: – Quick and simple insertion – Very consistent hormone release – No need to remember daily or monthly contraception – Suitable for those who cannot use estrogen |
| Possible Drawbacks: – Insertion can be uncomfortable or painful – Irregular bleeding in the first 3-6 months – Rare risk of expulsion or perforation | Possible Drawbacks: – Irregular bleeding or spotting is common – Some women experience mood changes or acne – Arm tenderness during first days after insertion |
| Effectiveness: Over 99% effective | Effectiveness: Over 99% effective |
| May also help with: – Heavy menstrual bleeding – Painful periods – Endometriosis-related symptoms – Anemia caused by blood loss | May also help with: – Reducing menstrual cramps – Managing PMS for some users – Providing contraception for those who cannot tolerate IUD insertion |
When it comes to Mirena vs Implanon, both options stand out as some of the most effective forms of reversible contraception available. Because neither relies on daily or monthly user action, they consistently outperform pills, patches, and rings. In terms of pregnancy prevention, effectiveness is essentially equal, making the decision less about “which works better” and more about what works best for you.
Mirena is often the preferred choice for those looking to manage heavy or painful periods, while Implanon may suit individuals who want a quicker insertion process and are comfortable with the possibility of irregular bleeding. It’s also important to remember that neither Mirena nor Implanon protects against STIs or other sexually transmitted infections, so condom use is still recommended for that purpose.
What Women Told Us: Real Experiences from Our Survey
We conducted a small survey with 30 participants to better understand real-life experiences in the Mirena vs Implanon conversation.
While 66% of respondents chose Mirena and 34% opted for Implanon, the comments revealed a wide range of personal perspectives, reinforcing that there is no one-size-fits-all solution when it comes to birth control.
Several participants emphasized the importance of hormonal tolerance and personal physiology. One woman noted that while not included in the poll, she would personally consider the copper coil due to its lack of hormonal effects. Others highlighted alternative hormonal IUDs, with some expressing a preference for Jaydess, especially when contraception, rather than menstrual management, was the primary goal. One participant shared that she currently uses the Jaydess IUD and has experienced no side effects or discomfort, underscoring how well certain options can suit some bodies.
Among Mirena users, the feedback was largely positive. One participant described Mirena as life-changing, particularly after months of constant bleeding, while another reported no side effects whatsoever and a smooth overall experience.
Experiences with Implanon were mixed. One participant described experiencing “every side effect in the book,” which ultimately led to removal of the implant, though she still acknowledged its effectiveness as a contraceptive and stressed the importance of consulting a gynecologist before choosing it. In contrast, another woman who had used the implant twice reported regular monthly periods and no side effects at all, highlighting the stark differences in individual responses.
Together, these voices reflect a recurring theme: while statistics can guide decisions, personal experience varies greatly. The right choice depends on individual health needs, hormonal sensitivity, and open conversations with a trusted healthcare professional.
Ultimately, choosing between Mirena vs Implanon should be guided by your body, your lifestyle, and a conversation with a qualified healthcare professional who can help you determine the best fit for your needs.
Expert Advice on Mirena vs Implanon from Dr Natalie Psaila Stabile.
The IUS (Mirena® and Jaydess®) and the hormonal implant (Implanon®) are progesterone-only contraceptives, making them quite safe in terms of risks of complications when compared to other hormonal contraceptives. For example, these contraceptives are safe for those who suffer from migraines, or for those who smoke. That is not to say that side effects are not possible, and indeed, many people experience a few, especially at the beginning of the treatment. Side effects include spotting, irregular and frequent bleeding, or no bleeding, mood swings, and bloating. Side effects usually settle within three months of treatment. If they’re still present after that time, it is probable that they will continue for the length of treatment.
When the amount of bleeding is unacceptable, one should still not be discouraged because there are ways to decrease the number of bleeding days. One should check with the GP or gynaecologist who prescribed the treatment for help before taking the decision to remove the IUS or implant.
Another common effect with the IUS and implant is having decreased or no bleeding at all. Some women dislike the complete absence of a period because of concerns for health or worry about potential pregnancy. However, it’s good to remember that having periods is not vital for health. Also, since these are long-acting contraceptives, there is negligible (less than 1%) risk of being pregnant. My advice to such people is, enjoy your non-bleeding body!
The IUS and implant carry a hefty price at the beginning of treatment, although eventually over the years, these contraceptives work out to be more cost-efficient than other options. Therefore, it’s a shame to remove them after a few months because of side effects. For those showing interest of using the IUS or implant, I like prescribing a three-month trial of the progesterone-only contraceptive pill (mini-pill). The relatively cheaper pill (around 14 eur per month) contains a very similar hormone to that in the IUS or implant and helps me and the client assess whether her body would tolerate these contraceptives. Any side effects usually settle within three months. Having side effects while on the mini-pill indicates a higher likelihood of experiencing side effects with the IUS or implant. However, contraception is very individual and personal, and having no side effects with the mini-pill, does not guarantee no side effects with the IUS or implant.
Once the IUS or implant are removed, fertility quickly returns to normal, as is typical for progesterone-only contraceptives. This is good news for those who want to try getting pregnant. But beware if you’re not planning to have children; I would advise switching to another contraceptive as soon as possible.
Dr Natalie Psaila Stabile is a Specialist in Family Medicine who enjoys helping clients of all ages and genders. She is a PhD candidate with the Faculty of Social Wellbeing studying the effects of abortion stigma in Malta, and has been involved in various research projects. She is also an activist and co-founder of Doctors for Choice Malta. Her hobbies include swimming, reading, and going on walks with her young daughters.
Do you have an experience you’d like to share with us at Wham, either in your name or anonymously? Contact us! We’d love to hear from you!
Claire Galea is a self-employed holistic care practitioner with formal training in nursing. She is passionate about patient-centered care and public education on health and social issues. Committed to lifelong learning, Claire enjoys exploring a broad range of topics, from spirituality to contemporary affairs.
Claire is also passionate about spreading awareness on the negative effects that domestic abuse leaves on its victims’ mental, emotional, social and physical wellbeing. She is the author of two downloadable ebooks, namely Heal Your Life Forever and 5 Simple Steps To Creating The Life Of Your Dreams.
Click here to check out Claire’s full bio as well as a list of all her Wham published articles
