Washing Hands – Complete Guide to 7 Steps and WHO Timing

Hand washing is one of the simplest yet most effective ways to prevent the spread of infections. Health authorities worldwide agree that proper technique, adequate duration, and regular practice can significantly reduce the transmission of harmful germs. This guide breaks down the seven-step method, the timing recommended by the World Health Organization (WHO), and the latest guidelines from the NHS, CDC, and Mayo Clinic.

Whether you are washing your hands after using public transport, before preparing a meal, or after caring for someone who is unwell, understanding the correct process matters. Studies show that many people miss critical areas such as the thumbs, fingertips, and between the fingers. By following a structured approach, you can ensure that every surface is cleaned effectively.

Hand hygiene is not just about personal protection. It is a public health measure that curbs the spread of respiratory and diarrheal illnesses. The WHO estimates that improved hand hygiene in healthcare settings can prevent up to 50% of avoidable infections. This article consolidates the most authoritative guidance into one comprehensive resource.

What Are the 7 Steps of Washing Hands?

Key insights from leading health bodies:

• Plain soap and water is more effective than antibacterial soap for everyday use (Mayo Clinic).
• The WHO recommends a 40–60 second hand washing process, not 20 seconds as commonly believed.
• Proper hand drying is as important as washing: wet hands transfer germs more easily.
• Hand washing prevents 1 in 3 diarrheal illnesses and 1 in 5 respiratory infections (CDC).
• Surgical hand washing requires a 3–5 minute scrub depending on the product used.

How Long Should You Wash Your Hands According to WHO?

WHO’s 40–60 Second Recommendation

The WHO hand-washing poster specifies that the entire procedure should last 40–60 seconds. This includes wetting, applying soap, scrubbing all surfaces, rinsing, and drying. The duration is longer than the 20-second minimum often cited for public hand washing because it is designed for healthcare settings where thoroughness is critical.

Surgical Hand Washing Time

For surgical hand hygiene, the WHO provides separate, more rigorous guidance. This process, intended to reduce transmission of pathogenic microorganisms in clinical settings, typically requires 3–5 minutes depending on the antimicrobial product used. It is distinct from routine everyday hand washing.

Why Is Hand Washing Important for Preventing Infections?

Hand washing with soap and water removes dirt, viruses, and bacteria. The CDC states that it can prevent the spread of respiratory and diarrheal infections. The NHS adds that it helps stop illnesses such as food poisoning, flu, and diarrhoea. Mayo Clinic lists common situations where hand washing is essential, including before eating, after toileting, and after touching animals or garbage.

In healthcare settings, the WHO notes that hand hygiene improvement programmes can prevent up to 50% of avoidable health-care-acquired infections. This makes proper hand washing one of the most cost-effective public health interventions.

What Is the Correct Hand Washing Technique According to NHS and CDC?

NHS Hand Washing Recommendations

The NHS advises wetting hands with water, applying enough soap, rubbing all surfaces, rinsing, and drying thoroughly. It recommends washing for the time it takes to sing “Happy Birthday” twice (around 20 seconds). Removing jewellery such as rings and bracelets before washing can help improve coverage.

CDC Handwashing Facts and Statistics

The CDC recommends five steps: wet, lather, scrub, rinse, dry. It says to scrub for at least 20 seconds and suggests humming “Happy Birthday” twice as a timer. The CDC also states that washing hands with soap and water is the best way to get rid of germs in most situations. If soap and water are not available, an alcohol-based hand sanitizer with at least 60% alcohol is an alternative.

Mayo Clinic: Antibacterial Soap vs. Plain Soap

Mayo Clinic notes that antibacterial soaps available without a prescription do not kill germs better than plain soaps. For everyday hand washing, plain soap and water is sufficient. The FDA has also expressed concerns about the long-term effects of certain antibacterial ingredients, reinforcing the recommendation to stick with regular soap.

Should You Use Antibacterial Soap or Plain Soap?

The consensus among health authorities is clear: plain soap is the best choice for routine hand washing. Antibacterial soaps are not more effective at removing germs and may contribute to antibiotic resistance. The CDC and NHS both recommend hand sanitizer with at least 60% alcohol when soap and water are not available, but this is not a substitute for hand washing when hands are visibly dirty.

How Have Hand Washing Guidelines Evolved Over Time?

1. 1847 – Ignaz Semmelweis discovers hand washing reduces maternal mortality.
2. 1980s – First CDC hand hygiene guidelines published.
3. 2005 – WHO launches ‘Clean Care is Safer Care’ program.
4. 2009 – WHO publishes ‘Hand Hygiene: Why, How & When’ brochure.
5. 2020 – COVID-19 pandemic elevates hand washing to global priority.
6. 2024 – CDC updates handwashing facts with new infection data.
7. 2025-2026 – Current guidelines emphasise 40–60 second scrub duration.

What Is Certain and What Remains Uncertain About Hand Washing?

Why Is Hand Washing a Cornerstone of Public Health?

Hand washing is the single most effective measure to prevent the spread of infectious diseases. With growing antibiotic resistance and emerging pathogens, proper hand hygiene remains a cornerstone of public health. Current guidelines from the WHO, CDC, NHS, and Mayo Clinic converge on key principles: use plain soap, scrub for 40–60 seconds, cover all hand surfaces, and dry thoroughly.

The 7-step method ensures comprehensive coverage of high-contact areas often missed, such as thumbs, fingertips, and between fingers. The WHO’s 40–60 second recommendation is based on the time needed for soap to disrupt viral envelopes and bacterial cell walls. Surgical hand washing extends to 3–5 minutes due to the need for complete microbial elimination in clinical settings. Hand sanitizer (60%+ alcohol) is a useful alternative when soap and water are unavailable but is not a substitute for hand washing.

For more on maintaining overall wellness, see What Is a Good Blood Pressure – Ranges by Age & Gender and How To Help Constipation – Evidence-Based Relief You Can Trust.

What Do Health Authorities Say About Hand Washing?

“Handwashing with soap removes germs from hands. This helps prevent infections because people frequently touch their eyes, nose, and mouth without even realizing it.”

— CDC.gov, Handwashing Facts (April 2024)

“Antibacterial soaps that you can buy without a prescription don’t kill germs better than plain soaps.”

— Mayo Clinic, Hand-washing: Do’s and don’ts

“Wet your hands with water. Apply enough soap to cover your hands. Rub your hands together.”

— NHS, How to wash your hands

What Should You Remember About Proper Hand Washing?

Proper hand washing involves using plain soap and clean water, scrubbing all hand surfaces for at least 20 seconds (or 40–60 seconds following WHO guidance), rinsing thoroughly, and drying with a clean towel. It is a simple, powerful habit that protects you and those around you from a wide range of infections. For related guidance, see What Is a Good Blood Pressure – Ranges by Age & Gender.

Frequently Asked Questions About Hand Washing