What are the differences between allergic purpura and thrombocytopenia purpura?

Allergic purpura is caused by allergy, patients will appear skin petechiae, abdominal cramps, proteinuria, hematuria and other symptoms, while thrombocytopenia purpura is mostly caused by virus infection, patients are prone to skin mucosal bleeding, urethral bleeding, kidney damage, thrombocytopenia and other symptoms. It is recommended to go to the hospital to check the type of lesions.