Intracorpuscular hemolytic anemia is seen in-
Autoimmune hemolytic anemia
TTP
Thalassemia
Infection
Intracorpuscular hemolytic anemias are due to defective RBCs which undergo hemolysis causing anemia. Defect in RBCs may be inherited genetic defects like RBC memb disorders (hereditary spherocytosis , hereditary elliptocytosis).or enzyme deficiency (HMPshunt enzyme deficiency,glycolytic enzyme def).or Hb abnormalities like Thalassemia,sickle cell anemia. Ref : robbins and cotran pathologic basis of disease . Pg 630 table 14-1
Haematology