Macrocytosis is most commonly associated with vitamin B-12 and folic acid d
eficiency, followed by alcoholism, liver disease, and other pathologic cond
itions. We studied the red cell and vitamin status in 423 consecutive patie
nts with various liver diseases, including 31 with acute viral hepatitis (A
VH), 105 with chronic hepatitis (CH), and 134 with alcoholic liver disease
(ALD), who consisted of 84 with noncirrhotic alcoholic liver disease (NCALD
) and 50 with alcoholic liver cirrhosis (ALC), 60 with non-alcoholic liver
cirrhosis (NALC), and 93 with hepatocellular carcinoma (HCC). The mean corp
uscular volume (MCV) and red cell distribution width (RDW) were significant
ly higher in patients with ALD and NALC, and among them macrocytosis occurr
ed more frequently in patients with ALC. Macrocytic anemia was mostly found
in cirrhotic patients, in which the Child-Pugh score was closely related t
o the development of macrocytic anemia. In ALD, the MCV was significantly c
orrelated with the estimated alcohol consumption and inversely correlated w
ith the serum folic acid level, which, however, was often maintained within
the normal range in patients with macrocytic ALC. After abstinence from al
cohol, the MCV and RDW were reduced significantly and were associated with
an increasing serum folic acid level. This suggests that macrocytic anemia
was a common feature of alcoholic and non-alcoholic liver cirrhosis and tha
t alcohol abuse and folic acid deficiency play a secondary role In macrocyt
osis.