Gender Multispecialty Service (GeMS)

The Gender Multispecialty Service (GeMS) at Boston Children’s Hospital is committed to providing the highest level of individualized, safe, and affirmative care to gender-diverse and transgender individuals and their families. Founded in 2007, GeMS was the first major program in the U.S. to focus on gender-diverse and transgender adolescents. Since that time, we have expanded our program to welcome patients from ages 3 to 25.

Our approach

At GeMS, our mission is to assess and care for gender-diverse children, teens, and young adults through excellence in clinical care, advancement of research, and training other clinicians. We take a team approach to gender-affirmative care, partnering with experts from many different specialties, both at Boston Children’s and the community. These include:

Together, we provide physical and psychological assessment, ongoing medical care, and additional referrals as needed. We now also offer telehealth visits to eligible patients when appropriate.

The Behavioral Health, Endocrinology, Urology (BE-U) program at Boston Children’s Hospital is dedicated to providing care and support to infants, children, adolescents, and young adults with differences/disorders of sex development.

Our areas of innovation

The GeMS program is actively engaged in research with the hope that it will ultimately benefit the children, adolescents, young adults, and families with whom we work. We have received funding for our research form the National Institutes of Health and collaborate with many other gender centers throughout the United States.

Our research interests span medical, psychological, developmental, and social issues and include:

  • impact of medical treatments on health and well-being
  • impact of medical treatments on psychological well-being
  • reproductive health, including fertility counseling and disease prevention
  • gender development and well-being of prepubescent gender-diverse children
  • predictors of well-being in transgender and gender-diverse children, including family and social support



Meet our GeMS patients

Learn how we're helping support Leven and other gender-diverse kids.


Leven, GeMs patient portrait shot