Each culture has standards about the way that people should behave based on their gender.
Our biological sex is how we are defined as female, male, or intersex.
It describes our internal and external bodies — including our sexual and reproductive anatomy, our genetic makeup, and our hormones.
It’s normal to have questions about biological sex.
Here are some of the most common questions we hear about what it means to be female, male, or intersex. Biological sex identifies a person as either female, male, or intersex.
Most often Sometimes, a child is born with sex chromosomes that are different from the usual XX of the female or the XY of the male.