What is the appropriate way to wash your hands?

The appropriate way to wash your hands is to use soap and warm running water, scrub for at least 20 seconds, then rinse and dry. This method is effective because it helps to physically remove dirt, debris, and pathogens from the skin. The use of warm water facilitates lathering and rinsing, enhancing the effectiveness of the soap in dissolving oils and dirt. Scrubbing for at least 20 seconds ensures that all areas of the hands are cleaned thoroughly, including between fingers and under nails, where germs can be easily trapped. Finally, drying your hands properly is crucial, as it prevents the reintroduction of germs that can occur from contact with contaminated surfaces.

Other methods listed do not provide adequate hygiene. Washing hands with cold water for a very short duration isn't effective in removing pathogens. Simply wiping hands with a clean towel without soap does not eliminate germs; soap is essential for breaking down and removing contaminants. Using only antibacterial gel without water can be an alternative when soap and water are not available, but it is not as effective for removing all types of pathogens, especially when hands are visibly dirty. Thus, the detailed steps outlined in the first method represent the most reliable practice for hand hygiene.