The typical case is usually a small amount of human urine in the first few hours to two days after an upper respiratory infection, usually lasting for several hours to several days, which can be up to one week. These patients make up about 40 to 50 percent of the total and slightly higher in children. Inpidual can have severe lumbar pain and abdominal pain, may be associated with enteric IgA vasculitis. Another common manifestation of this disease is asymptomatic hematuria and/or proteinuria, about 30 to 40 percent of the total. Twenty to twenty-five percent of these cases can occur one or several times in the course of the disease.
Less than 10 percent of patients may experience acute renal failure and usually relieve themselves. Twenty to twenty-five percent of them may require dialysis, which is caused by a new cretiform nephritis. It is not uncommon to have nitrogen retention during the duration of the disease, about 25%. The onset of disease is about 10 percent of hypertension, but there is a significant increase in the number of patients after age 30. With the duration of the disease, more than 40 percent of patients with high blood pressure.
Nephrotic syndrome is seen in 5 to 20 percent of patients, with a large number of cases of children and young adults, often with diffuse hyperplasia or with no glomerular sclerosis. In addition, sometimes the phenomenon of IgA deposition may also appear in the small pathological nephropathy which is characterized by the fusion of the foot.