A 27-year-old female asked:
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can a gynecologist understand that i am taking birth control pills based on my blood test results? if yes, for how long do they stay in blood system?

2 doctor answers
Dr. Bryan Kurtz
33 years experience Obstetrics and Gynecology
Depends: It depends on what is being tested. Your LH, FSH, Progesterone and Estradiol levels would be abnormal.
Answered on Oct 24, 2017
Dr. Dale Kristle
39 years experience Gynecology
Unlikely: Gynecologists usually would not do specific tests that would tell if you are taking birth control pills. After stopping birth control pills, the hormones will usually be out of your system in less than 1 week.
Answered on Jun 17, 2014
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