Quick read
Key points
- 1
Good hand hygiene is one of the simplest and most effective ways to prevent the spread of infections, from common colds to more serious illnesses. Washing hands thoroughly with soap and water, or using alcohol-based hand gel when soap isn't available, significantly reduces the risk of picking up or spreading germs.
- 2
Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
- 3
Before eating or preparing food
01 · Know
What is How to Clean Your Hands?
Good hand hygiene is one of the simplest and most effective ways to prevent the spread of infections, from common colds to more serious illnesses. Washing hands thoroughly with soap and water, or using alcohol-based hand gel when soap isn't available, significantly reduces the risk of picking up or spreading germs.
Certain situations call specifically for soap and water rather than gel — including after using the toilet, before eating, and after contact with someone with diarrhoea and vomiting illness, since alcohol gel doesn't remove all types of germs as effectively.
02 · Understand
Clinical context
Soap and water is more effective than gel in certain situations
While alcohol hand gel is convenient and effective against many germs, soap and water is more effective for physically removing certain germs, including those causing diarrhoeal illness, and for visibly dirty hands.
03 · Act
Key Times to Clean Your Hands
- 1Before eating or preparing food
- 2After using the toilet or changing a nappy
- 3After coughing, sneezing, or blowing your nose
- 4After contact with someone who is unwell, or before and after caring for someone
04 · Prevent & manage
Practical steps
Wash for at Least 20 Seconds for Full Effectiveness
A quick rinse isn't enough — washing hands thoroughly for at least 20 seconds, covering all surfaces including between fingers and under nails, is needed for effective hand hygiene.
- 1Wet hands, apply soap, and rub thoroughly for 20 seconds.Make sure to cover the backs of hands, between fingers, and under nails.
- 2Rinse thoroughly and dry with a clean towel.Proper drying is also part of effective hand hygiene.
- 3Use soap and water rather than gel after using the toilet or with diarrhoeal illness.This is more effective for physically removing certain germs.
- 4Use alcohol-based hand gel when soap and water aren't available.This is effective against many common germs when hands aren't visibly dirty.
- 5Clean hands at key times throughout the day.This includes before eating, after using the toilet, and after coughing or sneezing.
Evidence
References
BarnMD Health Intelligence uses authoritative and clinically relevant sources appropriate to the topic. References are shown so readers can inspect the evidence directly.
- HSE: How to clean your hands ↗
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Good hand hygiene is simple, effective, and one of the most important everyday habits for preventing the spread of infection.
Soap and water is more effective than gel after using the toilet or with diarrhoeal illness, since gel doesn't remove all germs as effectively.