Can HPV be prevented after having two of the vaccine shots? Or are all three necessary to completely prevent the STD?
– Marina

The HPV vaccine works best when a girl receives all three shots on schedule. Scientists don't yet know how much protection someone has after just one or two shots.

Your best bet is to keep a calendar so you remember when shots are due. After your first shot, ask the doctor or nurse when you'll need to get the next shots. Then schedule an appointment if you can, or write down the dates so you remember to set something up later. Or put a reminder in your phone or sign up for online reminders — whatever works for you.

But what if you've missed a shot? Contact your doctor or clinic for advice on when to get the missed dose.

Reviewed by: Larissa Hirsch, MD
Date reviewed: October 2008

Have a question? Email us.

Although we can't reply personally, you may see your question posted to this page in the future. If you're looking for medical advice, a diagnosis, or treatment, consult your doctor or other qualified medical professional. If this is an emergency, contact emergency services in your area.

*Names have been changed to protect user privacy.

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