Abstract
1. Neither CPPA of serum nor fibrinolysis is to be found in the healthy persons and most cases of internal diseases without any decrease in capil-lary resistance.
2. CPPA and fibrinolysis of serum are to be found in various allergic diseases including drug allergy, subacute bacterial endocarditis, liver cir-rhosis, malignant neoplasma, collagen disease, and capillary toxikosis etc.
3. Increased capillary permeability is a common clinical symptom in patients with signs of CPPA of serum and fibrinolysis.
4. CPPA of serum should be considered to result from activation of fibrinolysin in plasma and digestion of plasma protein.
