Alcoholism is a frequent condition in patients admitted to general hospitals. The rate of identification of patients suspected to be alcoholic, the therapeutic measures proposed to such patients and their destination at hospital discharge were among the issues studied in the general wards of a department of internal medicine of an hospital in the French-speaking region of Switzerland. The Michigan Alcoholism Screening Test (MAST) was utilized systematically among all patients aged 20-75 years who where admitted consecutively to the department. Two cohorts matched for age and sex were thus formed: 102 alcoholics (MAST greater than or equal to 8) and 102 non-alcoholics (MAST less than or equal to 4). A diagnosis of alcoholism or of a syndrome of alcohol dependence was found in only 50% of all exit reports of the alcoholic cohort, whereas alcohol-related problems were identified on a verbal basis by the attending physician in 89% of cases. Therapeutic measures were proposed to 69% of female alcoholics and to 43% of male alcoholics, more frequently among patients with the highest MAST scores. In addition, at hospital discharge, alcoholic patients were more likely to be sent to a destination other than their place of residence than were the non-alcoholic patients. This study illustrates the low rate of identification and subsequent treatment of alcoholism among hospitalized patients. It also suggests that hospital stays should be used more frequently to increase the systematic identification of alcohol problems, increase awareness of alcoholism and provide information to both patients and those caring for them.