Henoch-Schonlein purpura is the most common type. The main manifestation of the patient is cutaneous purpura, which is symmetrically distributed and accompanied by skin edema. Purpura was initially confined to limbs, lower limbs and buttocks, and rarely involved the trunk. The color is dark red, which does not fade after pressing. It turns purple, tan and yellow after a few days, and gradually fades after 1-2 weeks.

Abdominal allergic purpura

The patient is complicated with a series of digestive tract symptoms, such as nausea, vomiting and diarrhea. Paroxysmal abdominal pain is the most common, and the nature of pain is colic and hyperactivity of bowel sounds.

Joint allergic purpura

Patients with joint involvement, joint swelling, pain and dysfunction, mostly occurred in knees, elbows and other big joints. Recurrent attacks.

Henoch-Schonlein purpura

This kind of patients is the most serious, besides skin purpura, there are hematuria, proteinuria and renal tubular urine. A week after purpura occurred, most of the kidneys were involved. Most patients can recover from nephritis after early treatment, and a few patients will develop chronic nephritis, nephrotic syndrome and even renal failure.

Mixed allergic purpura

Mixed henoch-schonlein purpura refers to the coexistence of two or more of the other three types except simple henoch-schonlein purpura.