Towel is used for a long time, becomes hard to make people uncomfortable, the most important is infected with a large number of bacteria, harmful to human body. Towel is made of pure cotton yarn, cotton fiber is a tubular structure, containing a hollow lumen, can store water; Its main chemical composition of cellulose molecules containing a large number of hydrophilic gene, can absorb the moisture. Cotton yarn of the moisture absorption, water storage properties make towel feels comfortable, strong decontamination ability, suitable for wash clean. But it is also due to this characteristic, provides convenient conditions for bacterial growth. Bacteria like the warm, moist environment. Towel in temperature humidity condition for a long time, after a certain time, has become a paradise for bacterial growth, combined with the human body skin grease, dust, the impurities in the water, the bacteria in the air, and so on deposition on the towel, and then use the towel to wipe the skin, not only, the effect was not clean, it will stain the skin, clogged pores. Children like the makeup woman and fast metabolism, skin oil, towel is more likely to be infected with, hazard especially big.