The black spots on the face, also known as clinically known as blackheads, are a kind of mild acne. The reasons for the increasing number of blackheads on the face mainly include mental factors, poor hygiene, and bad dietary habits. 1. Mental factors. As a skin disease, blackheads and pimples can easily affect the hormone secretion level of the body when the spirit is highly stressed or overly depressed, which also increases the chances of blackheads and pimples forming. 2. Poor hygiene. More dirt on the surface of the skin will directly affect the relaxation of the pores, but also affect the normal discharge of sebum secretion, so it will also increase the number of blackheads and pimples. 3. Bad eating habits. For people who like to eat spicy and greasy food, the amount of sebum secretion will obviously increase, in the case of discharging obstruction is easy to form blackheads and pimples. After the appearance of blackheads and pimples must be from various aspects to improve the symptoms of blackheads, if necessary, it is recommended to go to the dermatology department of the hospital, please ask a professional doctor for a face-to-face analysis.