Descriptive study, with qualitative variables, carried on in the Ambulatory of Specialties Region of Taubaté, in order to evaluate the missing contacts of leprosy patients. Thirty-six records of new cases were analyzed, from January 2003 to July 2004. Ninety-two contacts were identified, being 64.1% missing ones, having 25% from 20 to 29 years and 58.5% female. Of these, 61% were submitted to consultation of home nursing. Reported non-membership to the control for forgetfulness (66.6%), and lack of time (11.1%), 4 contacts had symptoms of leprosy, and 1 was confirmed (transmissible form - Dimorfa). Without achieving 100% coverage active search, we suggest, to ensure the goal of eliminating of the disease, partnerships and decentralization of the control activities.