Blood cell alterations
Alterations of blood values may be a cause of a rash in adults, especially when there is a dysfunction or low levels of thrombocytes. These cells are capable of triggering blood clotting, and causes in adults include infectious diseases like chickenpox, and severe blood alterations, as in leukemia. They trigger a hemorrhagic type of skin rash. Infectious diseases like chickenpox are more severe in adults. Moreover, they have a higher risk of suffering from myeloproliferative diseases like leukemia. Thus, they should be investigated thoroughly as soon as hemorrhagic rash is suspected.