Ending Open Defecation: How Community-Based Sanitation Programs Are Changing Lives
"Discover how a simple, community-driven approach is revolutionizing sanitation in developing countries, offering a sustainable path to better health and dignity."
Globally, billions lack access to basic sanitation, leading to serious health risks and environmental concerns. Traditional approaches to solving this issue often involve providing infrastructure or financial incentives for toilet construction. However, a recent study focuses on a different tack: community-based programs designed to foster behavioral changes and promote sanitation from the ground up.
Published in January 2018, the research examines a community-led total sanitation (CLTS) program in rural Mali. Researchers investigated whether collective action and information could effectively encourage villagers to construct and consistently use latrines. The results offer a compelling case for the effectiveness of this approach, showing significant improvements in sanitation practices and community well-being.
This article delves into the details of the Malian experiment, exploring how community involvement and a shift in social norms can drive meaningful and lasting change in sanitation behaviors. By understanding the nuances of this approach, we can gain valuable insights into promoting healthier communities and achieving global sanitation goals.
The Scale of Open Defecation
Open defecation—the practice of defecating in the open rather than in a toilet or latrine—remains one of the most pressing global sanitation challenges. Hundreds of millions of people worldwide still practice open defecation, with the vast majority concentrated in sub-Saharan Africa and South Asia. The practice is closely linked to contaminated water sources, diarrheal disease, and childhood mortality, particularly in low-income communities. While global progress has been made in reducing open defecation over recent decades, the scale of the problem continues to demand urgent attention from governments and international organizations.
Community-Led Total Sanitation and Its Constraints
Community-Led Total Sanitation (CLTS) has emerged as the most widely adopted approach to ending open defecation, focusing on community mobilization and behavioral change rather than hardware subsidies. The method works by facilitating a collective realization of the health risks associated with open defecation, prompting communities to take action without external toilet provision. However, critics note that CLTS faces significant limitations, including challenges in sustaining behavioral changes over time and difficulties in reaching the most marginalized populations. Additional critiques point to the approach's reliance on community dynamics, which can vary widely across cultural and socioeconomic contexts.
Decades of Progress and Persistent Gaps
The global fight against open defecation has spanned several decades, with international frameworks increasingly recognizing sanitation as a fundamental human right. Early efforts focused heavily on infrastructure provision, but the field gradually shifted toward community-driven approaches as evidence mounted that toilets alone did not guarantee behavioral change. The United Nations' Sustainable Development Goals, particularly SDG 6, formalized the target of eliminating open defecation by 2030 as part of broader sanitation and hygiene objectives. Despite these milestones, progress has been uneven across regions, with some areas achieving open defecation-free status while others have seen reversals.
The Power of Community: How CLTS Works
The CLTS approach is about igniting a community’s desire for change. Rather than simply providing toilets, CLTS facilitates a process where communities recognize the risks of open defecation and collectively seek solutions. The program in Mali, implemented with support from UNICEF, involved three key stages:
- Commitment: Participants create detailed timelines for constructing latrines or repairing existing ones.
- Follow-up: Local sanitation champions and CLTS staff conduct regular visits to monitor progress and provide support.
- Certification: Villages that successfully eliminate open defecation are awarded OD-free status, attracting media coverage and community celebration.
Recent Evidence on Community-Led Interventions
A 2026 systematic review of community-based interventions found that Community-Led Total Sanitation was the most frequently implemented approach in Sub-Saharan Africa, with several studies reporting improvements in latrine use and reductions in open defecation. However, the same review highlighted that adding supplementary components to CLTS does not consistently improve outcomes, suggesting that more effective implementation requires careful attention to context rather than program complexity. Research in Ghana's Sagnarigu municipality identified key predictors of persistent open defecation despite CLTS adoption, underscoring that access to improved sanitation alone is insufficient without addressing behavioral and socioeconomic barriers. A separate 2026 review emphasized the need for future policies and programs to prioritize sustainability and implementation quality, noting that achieving open defecation-free status is only meaningful if gains are maintained over time. A 2025 PAHO report further examined slippage factors—situations where communities revert to open defecation after initially achieving ODF status—highlighting the fragility of progress without ongoing support.
Limitations, Slippage, and Unintended Consequences
Despite the global commitment under SDG 6.2 to achieve adequate sanitation for all by 2030, open defecation persists as a significant challenge in many developing countries, raising questions about the efficacy of current strategies. UNICEF has cautioned that declaring a community open defecation-free is just the beginning of the journey, and that safe, inclusive sanitation systems must be established to secure lasting health outcomes. Beyond health concerns, the absence of toilet access exposes individuals—particularly women and girls—to heightened risks of sexual violence and harassment, adding a critical gender dimension to the sanitation crisis. The persistence of open defecation even after intervention programs suggests that top-down or technology-focused approaches may overlook the deeper structural and cultural barriers that sustain the practice. Wikipedia's comprehensive overview further documents the multidimensional nature of the problem, spanning public health, environmental contamination, and social inequality.
Evaluating Sanitation Approaches Across Contexts
Comparative assessments of sanitation interventions reveal that no single approach is universally effective in eliminating open defecation. Community-led models like CLTS have shown strong results in some contexts but have struggled in others, particularly where poverty, cultural norms, or geographic isolation present compounded barriers. Infrastructure-focused strategies, while essential for providing physical access to toilets, have similarly shown mixed results when not accompanied by behavioral change efforts. The evidence suggests that the most effective programs are those that integrate multiple components—community engagement, infrastructure support, and ongoing monitoring—tailored to local conditions.
A Sustainable Solution for a Healthier Future
The CLTS model offers a promising path forward for improving sanitation and public health. By empowering communities to take ownership of their sanitation challenges, these programs foster sustainable behavioral changes and create healthier environments. This approach could be a key strategy in achieving global sanitation goals and building a more equitable future for all.
Factors Shaping CLTS Success and Scale
A landmark qualitative review identified 43 distinct factors that positively or negatively affect the success of CLTS interventions, illustrating the complexity of achieving sustained open defecation-free status. Data from the Joint Monitoring Programme show that the number of people practising open defecation declined from 1.3 billion in 2000 to 419 million by 2022, representing a reduction of more than two-thirds over two decades. United Nations experts have described ending open defecation as having "transformational benefits" for the world's most vulnerable populations, linking improved sanitation to broader development outcomes. A systematic review of CLTS impact in Nigeria found that interventions produced reductions in open defecation rates ranging from 22% to 89% across different contexts, demonstrating significant variability in effectiveness depending on implementation conditions.
Sustaining Progress Beyond ODF Status
Community-Led Total Sanitation continues to be recognized as a powerful model for empowering communities to analyze their own hygiene practices and take collective action, with its emphasis on community-driven behavioral change rather than subsidy-dependent infrastructure. Recent research highlights the transformative potential of community-led sanitation programs in fostering healthier communities and driving improvements in quality of life. However, experts stress that the future of sanitation efforts depends on moving beyond the initial achievement of open defecation-free status toward sustained, inclusive systems that serve all community members. Innovation in monitoring, financing, and local governance will be critical to ensuring that gains are not only maintained but extended to the hardest-to-reach populations.
Structural Barriers to Sanitation Equity
Eliminating open defecation is not merely a technical or behavioral challenge—it is deeply intertwined with broader issues of poverty, inequality, and governance. Communities with the least access to sanitation infrastructure are often those with the fewest resources to invest in building or maintaining toilets, creating a cycle of disadvantage that is difficult to break. Political will, sustained funding, and cross-sectoral coordination are essential ingredients for lasting change, yet these remain inconsistent across many high-burden regions. The systemic nature of the challenge means that isolated interventions, however well-designed, are unlikely to achieve lasting impact without accompanying changes in policy, infrastructure, and social norms.
Children, Communities, and the Cost of Inaction
In Uganda, open defecation is responsible for a significant share of diarrheal disease, which accounts for 7.1% of mortalities among children under five each year—making sanitation a life-or-death issue for the youngest and most vulnerable. Although CLTS interventions have proven successful at achieving open defecation-free status, more than half of the investment in producing ODF communities is subsequently lost as communities slip back into open defecation, raising serious concerns about the sustainability of current approaches. Researchers have called for further studies on the feasibility of sustainable sanitation solutions and comprehensive assessments of water supply and sanitation systems to better understand what drives lasting change. These findings underscore that behind the statistics are real communities facing real consequences, and that the human cost of inaction extends far beyond what quantitative measures can capture.