Fleas are a common parasite that can be harmful to both humans and animals. They usually parasitize animals such as cats, dogs, etc., but sometimes they also bite humans. The harm of fleas to humans is mainly in the following aspects:
1 Discomfort caused by bites: When fleas bite humans, they will cause pain and itching, accompanied by symptoms such as redness, swelling, and pimples. These symptoms usually go away within hours, but sometimes they can last for days. 
2 Spreading diseases: Fleas are vectors for many diseases, such as plague, typhus, hare fever, etc. When fleas bite diseased animals, they can carry the pathogen to humans, causing illness in humans. 
3 Affect sleep: The bites and movement sounds of fleas may affect the quality of a person's sleep. When people are bitten by fleas, they feel itchy and uncomfortable, making it difficult to fall asleep or stay asleep.
In order to prevent the harm of fleas to people, the following measures can be taken:
1. Keep the environment clean: Clean the living environment regularly, including cleaning the floor, furniture, beds, etc. Use a vacuum cleaner or mop to remove dust and trash to reduce the living space for fleas.
2 Avoid close contact with pets: Try to avoid close contact with pets that may carry fleas. If your pet has fleas on them, they should be taken to the veterinarian immediately**.
3 Use anti-flea products: The use of anti-flea ointments, anti-flea sprays and other products can effectively prevent flea bites. When using these products, they should be used correctly according to the instructions and pay attention to safety. It is recommended to use Baiqi flea to spray comprehensively to kill fleas, which is a pure plant-extracted flea repellent spray, which can be used by mothers and infants, without any chemical ingredients, and can be dried naturally after spraying, no washing and no sun. When fleas come into contact with the liquid, their nerves will be irritated and they will die of dehydration. According to the area of the home, it can be sprayed and killed.
4 Maintain personal hygiene: Maintaining personal hygiene is an important measure to prevent flea bites. Bathe frequently, change your clothes frequently, and wash your clothes and bedding regularly. Avoid spending long periods of time outdoors, especially in grassy areas, jungles, and other places where fleas may be present.
In conclusion, the harm of fleas to people cannot be ignored. Flea bites and the risk of spreading disease can be effectively prevented by keeping the environment clean, avoiding close contact with pets, using flea control products, and maintaining personal hygiene.