Is purpura just skin bleeding?

Purpura is more common in children and young people, because blood oozes from blood vessels and petechiae or ecchymosis appears on skin and mucosa. Purpura is not only skin bleeding, but also tissue bleeding, forming a fluctuating hematoma. Severe patients will also have gastrointestinal and renal bleeding.

The causes of purpura hemorrhage can be divided into two categories:

(1) Vascular system diseases, such as damaged vascular wall or increased permeability and brittleness of vascular wall, lead to the leakage of red blood cells in the blood and form purpura, such as simple purpura, allergic purpura and allergic purpura with increased intravascular pressure. Lack of bacterial toxins, chemicals and vitamins can cause blood vessel damage.

(2) Bleeding caused by coagulation dysfunction, such as thrombocytopenic purpura, hemophilia, fibrinogen-reducing purpura, prothrombotic purpura caused by liver disease, and purpura caused by excessive anticoagulant drugs.

The above diseases not only lead to skin bleeding, but also lead to other tissues and internal organs bleeding. Purpura should not only consider bleeding, but also carefully examine the organs of each system to rule out blood system diseases. There are also some special types of purpura, such as rheumatic purpura and thrombotic purpura, which must be systematically examined to find out the causes and symptoms. Therefore, purpura should not be taken lightly.