Introduction

WASH stands for water, sanitation and hygiene. In contemporary policy, WASH systems mean the full set of services, infrastructure, institutions, financing arrangements, regulations and behaviours needed to ensure safe water, safe sanitation and hygienic living conditions for people and communities. WHO describes safe drinking water, sanitation and hygiene as crucial to health and well-being, while UNICEF treats WASH as central to child survival, dignity and resilient communities.

What a WASH system actually includes

A WASH system is much broader than taps and toilets. It includes the entire chain through which services are delivered and sustained.

It covers:

• safe water sources, treatment, storage and distribution
• toilets, sewerage, faecal sludge management and wastewater handling
• drainage and waste management linkages
• hygiene facilities such as handwashing stations
• behaviour change and public awareness
• institutions, standards, regulation, monitoring and financing
• maintenance and long-term service sustainability

This systems approach is now central to global health and development thinking because infrastructure without maintenance, or access without behaviour change, does not produce durable health outcomes.

Core components

Water

The water component focuses on access to safe, sufficient, reliable and affordable water for drinking, cooking, washing and health-care use. Unsafe water contributes directly to disease, while poor reliability affects household welfare, schooling, and health services.

Sanitation

Sanitation means safe containment, treatment and disposal of human waste. It includes toilets, sewerage, septage, wastewater systems and faecal sludge management. Sanitation matters because untreated excreta contaminates soil, groundwater and surface water, and drives disease transmission.

Hygiene

Hygiene includes practices and facilities that reduce infection risk, especially handwashing with soap, menstrual hygiene management, food hygiene and safe handling of household water. UN-Water describes hygiene knowledge and facilities as life-saving and highly cost-effective public health interventions.

Why WASH matters

WASH is one of the foundational conditions of public health. WHO notes that unsafe water and poor sanitation contribute to illnesses such as diarrhoea, and that untreated excreta contaminate water sources used for drinking and household purposes. UNICEF links WASH directly to child survival, education and protection.

Its importance can be understood through a few major effects:

• reduction in water-borne and faecal-oral diseases
• better maternal and child health
• stronger nutrition outcomes, because repeated infection worsens undernutrition
• improved school attendance, especially for girls
• protection of dignity, privacy and safety
• stronger resilience in health-care facilities and communities

WASH and human rights

Access to water and sanitation is recognized internationally as a human rights issue. UN-Water explicitly states that access to water and sanitation are human rights. This is important because it shifts WASH from being seen only as an engineering or welfare issue to being seen as a matter of equity, dignity and state obligation.

WASH and the Sustainable Development Goals

WASH is directly linked to the 2030 Agenda, especially:

• SDG 3, good health and well-being
• SDG 6, clean water and sanitation

But its effect goes beyond these two goals. WASH also influences education, nutrition, gender equality, poverty reduction and sustainable urbanization. This wider linkage is emphasized across WHO and UNICEF strategy documents.

WASH in health-care facilities

A major recent policy focus is WASH in health-care facilities. WHO and UNICEF updated the Country Progress Tracker in July 2025, covering 107 countries and reporting progress against the UN General Assembly resolution on water, sanitation, hygiene, waste and electricity services in health-care facilities. The update found that nearly every country was taking some action, but only 17 percent had secured sufficient financing to improve and sustain these services.

This is a major finding because health-care facilities cannot deliver safe care without reliable water, sanitation, hygiene, waste management and electricity. The United Nations General Assembly in 2023 adopted a resolution calling sustainable, safe and universal water, sanitation, hygiene, waste and electricity services in health-care facilities a core measure for universal health coverage, outbreak preparedness and stronger primary health care.

Why WASH in health facilities is especially critical

In health-care facilities, WASH is not only about comfort or cleanliness. It is a basic condition for clinical safety.

It is essential for:

• infection prevention and control
• safe childbirth and neonatal care
• surgical and emergency care
• biomedical waste handling
• health-worker safety
• trust in public health institutions

The 2024 WHO framework on universal WASH, waste and electricity services in health-care facilities explicitly treats these services as prerequisites for quality care.

Global policy architecture 

WASH is now embedded in a broader international policy framework.

Important elements include:

• WHO and UNICEF global monitoring and country progress tracking on WASH in health-care facilities
• the 2023 UN General Assembly resolution on WASH, waste and electricity in health-care facilities
• WHO’s broader health-centred framing of WASH as essential to resilience, well-being and healthy environments
• UNICEF’s long-term strategy linking WASH to child outcomes, schools, preschools and health systems

India’s position

India has been recognized in recent global tracking for efforts related to WASH in health-care facilities, including infrastructure improvement and inclusion of WASH indicators in national monitoring systems. That recognition does not mean the challenge is over, but it does indicate that India is part of the group of countries taking structured action in this field.

India’s larger WASH architecture is anchored in major national programmes.

Jal Jeevan Mission

Jal Jeevan Mission aims to provide safe and adequate drinking water through household tap connections in rural India. According to a PIB release dated 8 days ago, as of 3 March 2026, around 15.82 crore rural households, or 81.71 percent of rural households, were reported to have tap water supply at home, up from 3.23 crore, or 16.7 percent, at the start of the mission.

Swachh Bharat Mission

Swachh Bharat Mission has been the major sanitation drive aimed at eliminating open defecation and improving sanitation infrastructure and behaviour. UNICEF India explicitly identifies it as one of the flagship national programmes to which it provides support in the WASH domain.

WASH in schools, anganwadis and health facilities

UNICEF India also highlights support to WASH in schools, preschools or anganwadis, and health-care facilities, showing that WASH is being treated in India not just as an infrastructure issue but as a service delivery and human development issue.

Main challenges in WASH systems

The most serious challenge is that progress in infrastructure does not automatically translate into sustainable service delivery. The WHO-UNICEF 2025 tracker makes this clear by showing major funding gaps even where countries have standards or assessments in place.

Major structural problems in WASH systems include:

• weak financing for maintenance and upgrades
• unequal access between rural and urban areas
• water quality concerns even where access exists
• sanitation systems without proper waste treatment
• inadequate hygiene behaviour despite infrastructure
• service interruptions in schools and health facilities
• climate stress on water availability
• governance and monitoring gaps

Conclusion

WASH systems are the integrated arrangements through which safe water, sanitation and hygiene are delivered and sustained. They are central to health, dignity, education, gender equality and sustainable development. Recent WHO-UNICEF tracking shows real progress, but also a major financing gap, especially in health-care facilities. In India, programmes such as Jal Jeevan Mission and Swachh Bharat Mission show that WASH has moved from the margins of welfare policy to the core of development and public health strategy.