During a five year period 36 episodes of septicaemia in 32 patients with hepatic cirrhosis were documented. This represents 20% of the patients hospitalized with a decompensated cirrhosis and 1.1% of the patients with non decompensated cirrhosis. In patients with decompensated cirrhosis, enteric Gram-negative organisms were most frequently isolated (91% of the cases) and ascitis was infected in one third of the cases. No primary foci of infection were documented. On the contrary patients with a non decompensated cirrhosis had infection mostly with Gram-positive organisms (82%) and foci of infection (skin, throat) were documented in 38% of the cases. Infection by enteric organisms was associated with higher mortality than infection by non enteric organisms (68% vs 28%). Five patients with inappropriate antibiotic treatment died from septic shock. Spontaneous septicaemia and peritonitis are frequent complications if cirrhosis. There are potentially treatable causes of deterioration in the cirrhotic patient, necessitating prompt recognition and treatment