The Importance of Personal Hygiene | Dettol- what is the importance of hand hygiene ,Good personal hygiene is important for both health and social reasons. It entails keeping your hands, head and body clean so as to stop the spread of germs and illness. Your personal hygiene benefits your own health and impacts the lives of those around you, too. The social benefits associated with personal habits must also be considered.Hand Hygiene in Healthcare Settings | CDCPracticing hand hygiene is a simple yet effective way to prevent infections. Cleaning your hands can prevent the spread of germs, including those that are resistant to antibiotics and are becoming difficult, if not impossible, to treat. On average, healthcare providers clean their hands less than half of the times they should.