Personal hygiene refers to the regular upkeep of the body through regularly bathing, brushing teeth, washing hands, laundering clothes and other such activities.

Personal hygiene is an important component of health. Poor personal hygiene can lead to the transmission of germs that cause diarrhea, conjunctivitis, and other infectious diseases. It can also lead to side effects such as body odor, greasy skin/hair and tooth discoloration that can have social repercussions for individuals.

Maintaining good personal hygiene can often be difficult for people who lack access to basic needs such as water, toilets or bathrooms, or the resources to procure supplies necessary for sanitary upkeep. For this reason, promoting the importance of hygiene widely is an important step for individuals, communities, and governments to take in ensuring the health of the population.