Personal hygiene is important because it helps prevent the spread of germs and infectious diseases, protects individuals from getting sick, and promotes overall physical, mental, and social well-being. By maintaining cleanliness through practices such as washing hands, bathing, oral care, and wearing clean clothes, personal hygiene reduces the risk of illnesses like colds, flu, gastroenteritis, and other infections. It also contributes to a positive physical appearance, boosts self-confidence, and encourages responsible behavior toward others in shared environments.