BMC’s Yawkey building doors are now closed as an entrance as part of our ongoing efforts to enhance our campus and provide you with the best clinical care.

All patients and visitors on our main campus must enter our hospital via Shapiro, Menino, or Moakley buildings, where they will be greeted by team members at a new centralized check-in desk before continuing to the hospital. We are excited to welcome you and appreciate your patience as we improve our facilities.

Assigned Sex at Birth


The sex (male, female, intersex) assigned to a child at birth, most often based on the child's external anatomy. Also referred to as birth sex, natal sex, biological sex, or sex.

Other examples: AFAB (assigned female at birth), AMAB (assigned male at birth).

Note: It is not valid to use “biology” or “science” to claim assigned sex at birth and/or gender are a fixed, concrete concept and/or binary. Science favors the fact that sex and gender are more complicated and involve much more than one’s sexual organs.


Adapted from The Fenway Institute and informed by Stop Using Phony Science to Justify Transphobia - Scientific American Blog Network