Mechanism 3. eIse: (1) estrogen: ITP often seen in female patient hold down platelet production augment platelet clearance (2) more delicate capillary wall
Mechanism 3.else： （1）estrogen: ITP often seen in female patient hold down platelet production augment platelet clearance （2）more delicate capillary wall
Clinical Findings Symptoms and signs e occurs in childhood, frequently precipitated by viral infection and usually self-limited. In adult form is usually a chronic disease and only infrequently follows a viral infection
Clinical Findings • Symptoms and Signs: • occurs ： in childhood, frequently precipitated by viral infection and usually self-limited. In adult form is usually a chronic disease and only infrequently follows a viral infection
Clinical Findings age It is a disease of young persons, with peak incidence between ages 20 and 50 there is a 2: 1 female predominance
Clinical Findings • age ： It is a disease of young persons, with peak incidence between ages 20 and 50 • sex： there is a 2:1 female predominance