This research study confirms that health extension workers (HEWs) and community health promoters (CHPs) in the Southern Region (SNNPR) of Ethiopia are going about their work of informing households on improved sanitation and hygiene practices and are succeeding in persuading many households to change their behaviour. The system of health extension is working and making a contribution to improvement of life in rural communities. Key informants in the communities value the work of the HEWs and CHPs.