This prospective study included all the patients who, during the month of September 1995, were admitted for pulmonary baclliferous tuberculosis to the Pneumology Clinic of the Fann University Hospital, Dakar. The patient's escorts and the health personnel were also included in this study. The aim of the study was to find the different socio-economic and health factors impeding the hospitalization of tuberculosis patients in the Pneumology Clinic of Fann University Hospital. 22 members of the health team, 209 patients aged between 15 and 65 years and 209 escorts were interviewed. Out of the 10% of tuberculosis patients with HIV seropositivity, 80% admitted not to have informed their spouses of their infection. The decision to be admitted was made by the patient himself in 54.4% of cases and by his family in 45.5% of cases. Late admittance with regards to the beginning of symptoms was due to the recourse to traditional medicine in 43.7% of cases, wrong diagnosis in 24%, ignorance in 19.3% and, in 13% of cases, due to inappropiate anti tuberculosis treatment. Despite the fact that anti tuberculosis medicine was free of charge, each patient or his family spent an average sum of 87,500 CFA F (US dollar 175) for a month's admission (the minimal salary (SMIG) in Senegal is 32,000 CFA F (US dollar 64), and 40% of the patients and escorts had difficulties making this payment. 9 patients were judged to be poor by 25.7% of the patients and 8.7% found relations with the health personnel difficult. The escorts deplored the lack of toilets (only 1 out of 4 was functional), the time worn facilities, the overcrowding as well as the irregularity and poor quality of the hospital meals. The entire health team deplored the lack of adequate personnel and 30% of them deplored the lack of hygiene of some patients and escorts. Taking financial charge of tuberculosis patients at the Pneumology Clinic of the Fann University Hospital requires an increased financial effort from the State (rehabilitation of the facilities, recruitment of medical and paramedical personnel, improved meals) harmonisation on a national scale of anti tuberculosis therapeutic protocoles and an Information-Education-Communication (IEC) programme on tuberculosis and hygiene.