1. any of a large group of diseases characterized by abnormal functioning of the immune system that causes your immune system to produce antibodies against your own tissues. Familiarity information: AUTOIMMUNE DISEASE used as a noun is very rare. Dictionary entry details. â¢ AUTOIMMUNE DISEASE (noun).
There is no clearly understood or universally agreed-upon cause for gender identity disorder. However, most experts agree that there may be a strong biological basis for the disorder. The sex of a human baby is determined by chromosomes.
Gender nonconformity is not a mental disorder. Gender dysphoria is also not the same being gay/lesbian. While some children express feelings and behaviors relating to gender dysphoria at 4 years old or younger, many may not express feelings and behaviors until puberty or much later.