Allergic purpura is a common allergic disease of capillaries, the main pathological basis for extensive capillary inflammation, skin purpura, gastrointestinal mucosal bleeding, joint swelling pain and nephritis symptoms as the main clinical manifestations, a minority of patients with angioneurotic edema.
Henoch Schonlein purpura nephritis
1, skin purpura: more common in the limbs and buttocks, symmetrical distribution, extension side more, in batches, face and torso less. At the beginning of purple red maculopapule, high leather, pressure does not fade, the number of days after the turn to dark purple, brown eventually fade. A small number of children with severe purpura can be combined with bullous hemorrhagic necrosis, some cases may be accompanied by urticaria and vascular edema. Generally, the skin purpura subsided after 4~6 weeks, some of the children after a few weeks interval, a few months after recurrence.
2, gastrointestinal symptoms: General paroxysmal severe abdominal pain, often located in the umbilicus or lower abdomen, vomiting with hematemesis, but rare in black or bloody stools, occasionally with intussusception, intestinal obstruction or perforation.
3, joint symptoms: about 1/3 of the cases can appear knee, ankle, elbow, wrist and other large joints pain, activity limitation.
4, renal symptoms: 30%~60% cases of renal damage clinical manifestations. Kidney symptoms occur in the onset of 1 months, may be more advanced in the course of the disease, other symptoms disappeared after the occurrence, most children with hematuria, proteinuria and urinary tube, with higher blood pressure and edema, as purpura nephritis, nephrotic syndrome and a few.
How to prevent allergic purpura
1, pay attention to avoid contact with pathogens, such as pollen, chemicals, paint, gasoline, dust mites, etc..
2, children with allergies do not keep pets, minimize contact with animal fur, especially those who have a clear allergen should pay attention to.
3, pay attention to food hygiene, wash hands frequently, do not eat dirty fruits and aquatic plants, in order to eliminate the chance of intestinal parasitic infection.
4, strengthen exercise, enhance physical fitness, improve the body's immunity to a variety of infections, to avoid the occurrence of allergic purpura incentives.
5, pay attention to climate change, timely change clothes, prevent colds, the room when the default ventilation to keep indoor air fresh.
6, before the disease is not cured, do not vaccinate all kinds of prevention, must be cured 3 ~ June, in order to carry out vaccination, otherwise it may lead to the recurrence of the disease.
Beijing In China