Scientists are not sure of the exact cause of this disease. Some researchers speculate that antibodies in the body from a previous cold or illness might cause a weakening of capillaries, causing the disease. The older a child is when they experience the symptoms, the more likely it is of a recurrence later. Most children recover after a couple of weeks on their own, but in some severe cases, a steroid may be prescribed.
The term purpura refers to a group of bleeding disorders characterized by purplish or brownish-red discolorations, easily visible through the skin's outer layer, that are caused by hemorrhaging (internal bleeding) into the tissues.
Thrombocytopenic purpura is a disorder in which the number of platelets (the tiny elements in the blood that are vital to clotting) is decreased, whether because of a primary disease or as a consequence of another blood disorder.
Purpura in the elderly is often due to the fragility of their skin.
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