(1) Cutaneous type (simple type): it is the common type with hemorrhagic rash, which appears symmetrically on both lower limbs or buttocks and upper limbs. Beginning as red papules, gradually purplish red, the center can bleed, blisters, necrosis and ulcers, scabs within a few days, about 1~2 weeks after shedding. It is often accompanied by neurovascular edema, polymorphic erythema and urticaria, and is often associated with discomfort and itching.
(2) arthralgia: in addition to skin purpura, there is arthralgia, mostly in the knee, ankle, elbow and wrist joints, which is wandering, swollen and painful, with limited movement, such as the appearance of purpura is very easy to misdiagnose as rheumatoid arthritis.
(3) abdominal type: in addition to skin purpura, abdominal pain, to the umbilicus and the right lower abdomen is common, sometimes spread to the whole abdomen. Often colicky, recurrent, each episode of pain site may not be fixed, the degree of abdominal pain and physical signs are not consistent, accompanied by nausea and vomiting, severe vomiting blood, blood in the stool and black stool. Due to the irregular peristalsis of the intestines can be induced intussusception, mostly in children, can also lead to intestinal perforation, intestinal necrosis and the emergence of peritonitis, should be dealt with in a timely manner, the implementation of surgical treatment.
(4) renal type: children are common, often occurring 1 week after the purpura nephritis changes, the performance of swelling, hypertension, oliguria, proteinuria, hematuria and tubular urine. With purpura cure soon recovered, there are a few can be extended to chronic nephritis or even uremia.
(5) Mixed type: abdominal, articular or renal type occurs at the same time is called mixed type.
(6) Other types: such as pleurisy, myocarditis, iritis, pneumonia (pulmonary hemorrhage), fundus and intracranial hemorrhage.