The overall incidence of clinical pulmonary tuberculosis in the University of Malaya students was found to be 3.15 per cent. This higher incidence of clinical tuberculosis is in keeping with the general morbidity and mortality figures of tuberculosis in the general public. Among students who were originally enrolled as inactive cases 26.5 per cent developed activity while in university and required treatment. No significant difference was found in the incidence and rate of reactivation of disease in students of various races. No student was obliged to quit studies permanently on account of the breakdown