Skip Navigation

Display Mode:

  • Choose Default Style
  • Choose High Contrast
California Teen Health | Teen Health Information
  • Teen Home
  • About Us
  • PAMF Home
  • Teen FAQ
  • General Health
  • Tobacco, Drugs & Alcohol
  • Emotions & Life
  • Sexual Health & Experience
Section TitleGeneral Health
  • For Females
    • Breast Health
    • Douching
    • Endometriosis
    • Fertility
    • Gynecologist Visits
    • Hymen
    • Periods
    • Vaginal Discharge
    • Vaginal Infections & PID
    • Yeast Infections
    • References
    Main content

    Female Health

    Fertility

    Unlike men, who make sperm continually once they enter puberty, women are born with all the eggs they will ever have. During each menstrual cycle, one egg matures to allow it to be fertilized if it comes into contact with sperm. Women are most fertile during certain parts of their cycles. A women's "fertile time" is about one-third of her cycle. During the other two-thirds of her cycle, she is probably infertile.
    Back to top

    Female symbol
    • For Parents
    • Privacy Policy
    • Site Map
    • Website Feedback

    © 2013 Palo Alto Medical Foundation. All rights reserved. Sutter Health is a registered trademark of Sutter Health®, Reg. U.S. Patent. & Trademark office.
    Serving communities around Palo Alto, Mountain View, Fremont, San Jose, San Francisco, Oakland, Dublin, San Mateo & Santa Cruz.