Does taking Yasmine still provide contraceptive effectiveness if breakthrough bleeding occurs?

Jul 27, 2022 Source: Cainiu Health
Disease description:

I experienced discomfort with the IUD and had no choice but to switch to oral contraceptives. I would like to know: if I experience bleeding while taking Yasmin, does it still provide effective contraception?

Doctor's answer (1)
Dr. Cao Ting
Bleeding while taking Yasmin does not affect its contraceptive efficacy, provided the medication is taken consistently and as prescribed. Yasmin is a short-term oral contraceptive; when taken correctly, it becomes effective at preventing pregnancy after one week of continuous use. During treatment, some women may experience light spotting or breakthrough bleeding—a common side effect of the medication—but this does not compromise contraceptive protection. However, inconsistent use—such as missing doses or failing to take a missed pill within the recommended timeframe—may reduce its effectiveness.