No relationship: Just because the Gardasil shot prevents infection by viruses that cause genital warts and some cervical cancers doesn't mean Gardasil has any effects on menstrual periods, PMS, sex, pregnancy, etc... The vaccine has no relationship to menstrual periods. The shot is given in the arm, and the antibodies are made by the immune system to offer protection throughout the body, not just at the genitals.
Answered 4/1/2015
6.2k views
Not A Known Problem: So far, this is not a known side effect.
Answered 10/2/2016
6.1k views
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