Total 25 clinical symptoms reported for Imerslund-Grasbeck syndrome type 1 
Hypersegmentation of neutrophil nuclei An excessive division of the lobes of the nucleus of a neutrophil.
 
Synonyms:Hypermature neutrophils; Hypersegmentation of neutrophil nuclei in peripheral blood
Very frequent
Macrocytic anemia A type of anemia characterized by increased size of erythrocytes with increased mean corpuscular volume (MCV) and increased mean corpuscular hemoglobin (MCH).
 
Very frequent
Megaloblastic anemia Anemia characterized by the presence of erythroblasts that are larger than normal (megaloblasts).
 
Very frequent