Welcome to the OSSD!

The Organization for the Study of Sex Differences (OSSD) is a unique scientific organization that seeks to enhance knowledge of sex/gender differences by facilitating interdisciplinary communication and collaboration among scientists and clinicians of diverse backgrounds.
 

Benefits of OSSD Membership

Among many reasons to join OSSD, here are just a few:

• Education and networking
• Discount on annual meeting registration
• Strong trainee support with numerous travel and poster awards!
  
  

JOIN NOW!

Letter from the OSSD President, Sofia Ahmed

Dear OSSD Members,

We warmly invite you to join us for a very special milestone: the 20^th Annual Meeting of the Organization for the Study of Sex Differences, to be held May 12–15, 2026 in Kona, Hawaiʻi, with the Women’s Health Research Cluster pre-meeting May 11, 2026.

This meeting is a celebration of 20 years of OSSD: two decades of building a global community, advancing rigorous sex and gender science, mentoring the next generation, and demonstrating that sex and gender are fundamental to outstanding health research and care. Over the last two decades, our members have helped transform “sex differences” from a niche interest into a central pillar of health research and clinical care. Read More >>>

Submit Your Abstract

OSSD members and prospective members are now invited to submit abstracts for the 2026 Annual Meeting at the Hilton Waikoloa Village, Kona, Hawaii, May 12-16, 2026.  The WHRC Pre-Meeting will be held on May 11, 2026. Learn More>>

Biology of Sex Differences Editorial: Sex Differences Research is Important! 

Click to Read the Editorial