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.
In men, a male hormone known as an androgen is primarily responsible for hair loss, but the main cause of FPHL appears to be less clear-cut. Women normally produce male hormones too, and in some cases the condition is associated with excessive androgen levels.