Exploring the Link Between Emergency Contraceptives and Yeast Infections - Obstetrics and Gynecology

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The association between emergency contraception and Candida infections?


Hello doctor, I took emergency contraception for the first time this January, and then in March, I suddenly experienced my first vaginal infection.
Now I have been infected again, which makes me wonder if it could be a side effect of the emergency contraception I took earlier this year.
Can you tell me if the effects of emergency contraception can continue to influence the body and cause a yeast infection two months later? Is there a connection between the two, or is it purely coincidental? Thank you!

Wúzhù de mèimei, 20~29 year old female. Ask Date: 2020/06/09

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, the two should be unrelated.
Wishing you good health.

Reply Date: 2020/06/09

More Info


The relationship between emergency contraceptives and yeast infections is a topic of interest for many individuals, particularly those who have experienced both. Emergency contraceptives, such as Plan B (levonorgestrel) or Ella (ulipristal acetate), are designed to prevent pregnancy after unprotected intercourse. They work primarily by delaying ovulation and may also alter the uterine lining to prevent implantation. However, their use can lead to various side effects, and some individuals may wonder if there is a connection between these medications and the development of yeast infections.

First, it is essential to understand that emergency contraceptives are hormonal medications. They can cause temporary hormonal fluctuations in the body, which may lead to side effects such as nausea, fatigue, and changes in menstrual cycles. However, the direct link between emergency contraceptives and yeast infections is not well-established in medical literature. Yeast infections, particularly those caused by Candida species, are often influenced by factors such as antibiotic use, hormonal changes, and individual susceptibility.

In your case, experiencing a yeast infection two months after taking an emergency contraceptive may feel concerning, but it is crucial to consider other potential factors. For instance, if you had taken antibiotics around the same time, this could have disrupted your normal vaginal flora, leading to an overgrowth of yeast. Additionally, hormonal fluctuations from the emergency contraceptive could also contribute to an environment more conducive to yeast infections, but this is not a direct cause-and-effect relationship.

The metabolism of emergency contraceptives occurs relatively quickly, typically within a few days. Once the medication is out of your system, it should not have lingering effects that would predispose you to yeast infections. Therefore, if you are experiencing recurrent yeast infections, it is likely due to other factors rather than the emergency contraceptive itself.

It is also worth noting that some women may be more prone to yeast infections due to hormonal changes throughout their menstrual cycle, stress, diet, or other health conditions such as diabetes. If you find that you are experiencing frequent yeast infections, it may be beneficial to consult with a healthcare provider. They can help identify underlying causes and recommend appropriate treatments or preventive measures.

In summary, while there may be some hormonal interplay between emergency contraceptives and the development of yeast infections, there is no strong evidence to suggest that taking emergency contraception directly causes yeast infections. If you have concerns about recurrent infections, it is advisable to seek medical advice to explore potential causes and treatments. Maintaining good vaginal health, including proper hygiene and possibly dietary adjustments, can also help reduce the risk of future infections.

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