Thrombocytopenic purpura can be differentiated from allergic purpura by etiology, blood counts, skin lesion characteristics, and accompanying symptoms.
1. Etiology: Thrombocytopenic purpura is a hemorrhagic disease with thrombocytopenia and a platelet count significantly lower than normal. Allergic purpura is a kind of allergic vasculitis, which is induced by streptococcal infections, viral infections, food, insect bites and other causes.
2. blood routine: can be identified by blood routine tests, if the platelet is low, it is considered to be thrombocytopenic purpura, if the platelet is normal, it is usually anaphylactic purpura.
3. Skin lesions: Thrombocytopenic purpura is characterized by bleeding of the skin and mucous membranes, whereas allergic purpura is mostly a brownish-red maculopapular rash that protrudes from the surface and is symmetrical.
4. Accompanying symptoms: patients with thrombocytopenic purpura will experience dizziness, fatigue and weakness, women will experience ischemic symptoms such as increased menstrual flow, while allergic purpura involving large joints will experience wandering pain, but also abdominal cramps often accompanied by nausea, vomiting, diarrhea and other symptoms.
Thrombocytopenic purpura and purpura allergic can be examined in the hospital to identify, under the guidance of the doctor for treatment.