Idiopathic thrombocytopenic purpura (ITP) Idiopathic thrombocytopenic purpura (ITP) is a bleeding disorder in which the immune system destroys platelets, which are necessary for normal blood clotting. People with the disease have too few platelets in the blood. ITP is sometimes called immune thrombocytopenic purpura or simply, immune thrombocytopenia.
sex-linked disorder - any disease or abnormality that is determined by the sex hormones; hemophilia is determined by a gene defect on an X chromosome. bleeder's disease, haemophilia, hemophilia - congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son.
(sÄkâ²shoÍo-Él) adj. 1. Relating to, involving, or characteristic of sex or sexuality, or the sex organs and their functions: sexual partners; sexual fantasies; sexual dysfunction. 2. Relating to the sexes or to gender: sexual politics. 3. a. Relating to, involving, or being reproduction characterized by the union of male and female gametes.