Hygiene is defined as the science of health, encompassing various types such as social, industrial, school, and personal hygiene, which contribute to overall well-being. Importance lies in maintaining health, promoting comfort, and improving quality of life; factors influencing hygiene practices include personal preferences, social influences, socioeconomic status, health beliefs, cultural values, and physical conditions. Nurses play a critical role in assessing and providing personalized hygienic care, guiding patients towards independence and integrating medical knowledge for effective hygiene practices.