No Access to Handwashing

No Access to Handwashing is one of the modifiable risk factors tracked by the IHME Global Burden of Disease Study. The attributable deaths shown here represent the estimated number of deaths that could be prevented if exposure to this risk factor were eliminated or reduced to optimal levels. Understanding risk factor contributions helps prioritize public health interventions and policy decisions.

Risk factor attribution uses comparative risk assessment methodology. A single death may be partially attributed to multiple risk factors, so attributable death counts should not be summed across risk factors. Data covers 204 countries from 1990 to the latest available year.

Lack of access to handwashing facilities with soap and water is a critical hygiene risk factor, contributing to diarrheal diseases, respiratory infections, and other communicable diseases that kill hundreds of thousands of people annually — predominantly young children. Globally, an estimated 2.3 billion people lack a basic handwashing facility at home. Sub-Saharan Africa and South Asia have the lowest coverage. Handwashing with soap at critical moments — after defecation, before preparing or eating food, and after handling children's faeces — reduces diarrheal disease incidence by approximately 30% and respiratory infections by about 20%. The COVID-19 pandemic highlighted the importance of hand hygiene for infection prevention, but also exposed the reality that billions of people lack the infrastructure to practise it. Schools, healthcare facilities, and public spaces in many low-income countries lack functional handwashing stations.

No Access to Handwashing contributes to mortality from diarrheal diseases, lower respiratory infections, enteric infections. The magnitude of impact varies by country depending on exposure levels, population demographics, and the availability of preventive and treatment services.

Installation of handwashing facilities in households, schools, healthcare centres, and public spaces is the foundation. Behaviour change communication — leveraging social norms, nudge approaches, and community mobilisation — improves handwashing practice even where facilities exist. Affordable soap and water access is essential. Alcohol-based hand sanitisers provide an alternative where water is scarce. Integration of hand hygiene into WASH programmes, health system strengthening, and pandemic preparedness investments ensures sustainability.