Ten rural communities in the northern area of Guatemala where cutaneous leishmaniasis (CL) is endemic were investigated to determine the residents' knowledge of the disease, their related concepts and practices, and their treatment preferences, and to identify the communication channels they use to acquire information. Of 425 heads of household interviewed, 96.7% could accurately describe a typical CL lesion. CL was found to be the fourth most frequently mentioned disease (in studies based on a free list format) and to be considered the sixth most serious (in studies based on paired comparisons). A series of three-way comparisons, used to analyse the subjects' concepts about the similarities of various discases, indicated that CL was considered to be most closely related to skin problems and to be different from any other group of diseases. All interviewees believed that it was necessary to receive treatment for CL, because without treatment the disease would progress, reach the bone, and take years to heal. More than half (55%) of the respondents knew about meglumine antimonate (Glucantime), the most commonly prescribed drug for treating CL in Guatemala. Only a few communication channels that were used by respondents to receive information were identified; the use of radio broadcasts and direct communication via the community leaders appeared to be the most effective.