Ideas in this flowchart

• Sex refers to physiological differences among male, female, and intersex bodies.
• Sex includes primary and secondary sex characteristics.
• Primary sex characteristics are related to the reproductive system.
• Secondary sex characteristics are not directly related to the reproductive system, such as breasts and facial hair.
• Biological sex is determined at birth using several physical and biological factors.
• Chromosomes are one factor used to determine biological sex.
• Gonads are one factor used to determine biological sex.
• Hormones are one factor used to determine biological sex.
• Internal reproductive anatomy is one factor used to determine biological sex.
• Genitalia are one factor used to determine biological sex.
• Western medicine has traditionally conceptualized biological sex as a binary divided into male and female.
• Intersex describes variations in chromosomes, gonads, or genitals that do not allow distinct classification as male or female.
• Approximately 1.0 to 1.7% of children are born intersex.
• Because intersex conditions take multiple forms, many view sex as a spectrum rather than two mutually exclusive categories.
• Sex is typically divided into male, female, or intersex.