Environment and sexual orientation

The relationship between the environment and sexual orientation is a subject of research. In the study of sexual orientation, some researchers distinguish environmental influences from hormonal influences,[1] while other researchers include biological influences such as prenatal hormones as part of environmental influences.[2]

Scientists do not know the exact cause of sexual orientation, but they theorize that it is the result of a complex interplay of genetic, hormonal, and environmental influences.[1][3][4] They do not view sexual orientation as a choice.[1][3][5]

Hypotheses for the impact of the post-natal social environment on sexual orientation are weak, especially for males.[6] There is no substantial evidence which suggests parenting or early childhood experiences influence sexual orientation,[7][8] but research has linked childhood gender nonconformity and homosexuality.[9][10]