The white stuff squeezed out of the pores is not mites, but sebum, because sebum may form a certain white substance in the state of thin stripes through the squeezing action of the hand. This kind of material is actually sebum secreted by the sebaceous glands, and sebum in the sebaceous gland ducts to form a certain amount of stagnation, if squeezed by hand, some people may squeeze out a certain amount of white material, so some people may be mistaken for mites, and mites are not so big, so squeeze out is not this kind of parasites. The reason for the formation is mainly due to sebum secretion, and sebum secretion is due to a variety of reasons, such as due to staying up all night, or eating spicy and stimulating food, in addition there are also familial factors, or genetic factors, can also lead to the occurrence of this phenomenon.