Sex refers to a person's identity assigned at birth based on physical characteristics, whereas gender refers to an internal sense of identity. Sexuality refers to the gender to whom a person is sexually attracted. Your gender is what appears natural to you, even if it differs from the gender assigned to you at birth based on your predicted sex. Some people may be dissatisfied with the gender assigned to them at birth. They can choose to live their life according to their true gender identity. Lesbian, gay, bisexual, and transgender people make up the LGBTQ community.