Aso high anti-streptococcal hemolysin may be due to suffering from active rheumatic fever, scarlet fever, acute glomerulonephritis and so on. 1. Streptococcal hemolysin is an exotoxin released by group A streptococcus, which has the effect of lysing red blood cells, destroying white blood cells and platelets. 2. Common causes of high Aso anti-streptococcal hemolysin mainly include the following: (1) Active rheumatic fever: it is an inflammatory disease caused by infection of the pharynx with beta-hemolytic streptococcus, with arthritis and subcutaneous nodules as typical clinical manifestations. The antibody to streptococcal hemolysin in the serum of patients with active rheumatic fever is significantly elevated, which can be used as one of the indicators of recent streptococcal infection. (2) Scarlet fever: It is an acute, respiratory infectious disease caused by streptococcal infection, with fever, rash and strawberry tongue as its typical symptoms, and it is a toxin disease. If these symptoms appear and the anti-streptococcal hemolysin O test is high, it can be initially judged as scarlet fever. (3) Acute glomerulonephritis: it is a kind of hypersensitivity disease caused by β-hemolytic streptococcal infection, and the patient may show hematuria, proteinuria, etc., and accompanied by elevated anti-streptococcal hemolysin O. If you find high anti-streptococcal hemolysin, it is recommended to consult a doctor in time for examination and treatment under the guidance of a professional doctor, so as to avoid delaying the condition.