purpose: to determine functional patterns alterations in people with pulmonary tuberculosis undergoing treatment. methods: qualitative, descriptive study, based on the content analysis technique. during the second half of 2009, functional health patterns of patients registered in the tuberculosis prevention and control program were evaluated in three public health care providers in villavicencio, meta. results and discussion: patterns showing more alterations were activity and exercise, nutrition and metabolism and self-perception and self-concept. fatigue and dysnea compromise trips to health institution; decrease in energy makes it difficult for patients to maintain jobs, which affects family income. there is ignorance regarding relevant aspects ofdisease control. sadness and isolation associated to social negative perception of the disease are present. conclusions: the health service team should respond to complex situations of patients, which go beyond the administration of treatments. nursing has a core role in the creation of appropriate care scenarios and in the promotion of interdisciplinary characters for the integral care of patients. developing customized interventions is encouraged, with nursing care guidelines and, particularly, improving information provided to people about the disease, treatment and transmission prevention and control strategies.