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A 31-year-old member asked:

Why are they saying yaz (drospirenone and ethinyl estradiol) birth control pills cause more blood clots?

1 doctor answer7 doctors weighed in
Dr. Timothy Brown
Obstetrics and Gynecology 41 years experience
A small risk: Birth control pills contain an estrogen, which is almost universally the same regardless of brand, and a progestagen which varies with the brand. Different progetagens have different risks of causing blood clots, apparenly higher in the case of the progestagen in yaz (drospirenone and ethinyl estradiol). The risks and absolute differences are very small. Consider the difference between 1 in 10, 000 and 2 in 10, 000 for example.

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Last updated Jul 1, 2020


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