Generally speaking, purpura has no absolute contraindication to fruits, but allergic purpura is best avoided by mango, pineapple and other easily allergenic fruits. 1. Purpura is mainly caused by abnormal coagulation function, abnormal structure and function of blood vessel wall, abnormal platelet number or function, manifested as a purplish-red rash on the surface of the skin, which does not fade when pressed. It is mainly categorized as allergic purpura, purpura simplex and thrombocytopenic purpura. 2. One of the allergic purpura is due to the body’s allergic reaction to certain allergenic substances, and food is a common allergen, in which fruits are easily allergic to mango, pineapple, etc., if the patient has an allergic reaction to a certain fruit, it should be prohibited to eat. Other types of purpura have no contraindications to fruits, but allergy-prone foods and fruits should be avoided on a daily basis. Patients with purpura are advised to adjust their dietary regimen under the guidance of a professional doctor to avoid aggravating their condition.