Liver disease is a frequent cause of haemostatic abnormalities, which may l
ead to overt or occult bleeding. Clinical manifestations of hepatic coagulo
pathy include upper and lower gastrointestinal haemorrhage, easy bruising a
nd bleeding from gums, nose or the female genital tract. The most significa
nt bleeding problem among patients with chronic liver disease is blood loss
due to portal hypertension. About 30% of subjects with oesophageal or gast
ric varices resulting from cirrhosis have an episode of gastrointestinal bl
eeding in their lifetime. Risk factors for the first episode of variceal bl
eeding include the severity of liver dysfunction, large varices, and the pr
esence of endoscopic red colour signs. Bacterial infection in patients with
variceal haemorrhage may be critical in triggering bleeding. Nongastrointe
stinal bleeding events, either spontaneous or induced by minor trauma, are
also a common complication of advanced cirrhosis. In women, for instance, d
ysfunctional uterine bleeding may become so severe that hysterectomy is req
uired. In addition, invasive diagnostic tests (mostly solid tissue biopsies
) and surgical procedures have a high risk of haemorrhage and are sometimes
withheld in cirrhotic patients for fear of complications. In patients with
portal hypertension, surgical procedures aggravate the injury of the hepat
ic parenchyma and may worsen the condition. Blood Coagul Fibrinolysis 11 (s
uppl 1):S75-S79 (C) 2000 Lippincott Williams & Wilkins.