The symptoms are different and the corresponding etiology is different. Consider folliculitis, warts, fatty grains and acne, which require specific analysis according to the symptoms: 1, folliculitis: mostly due to skin damage or stagnation of hair follicles, bacteria enter the follicles and cause inflammation, most commonly due to Staphylococcus aureus. The most common is Staphylococcus aureus. You can see red papules on your face centered on hair follicles, topped with white pustules, with a red halo around the edges, accompanied by itching, tenderness, single or multiple groups exist; 2, warts: usually caused by infection with human papillomavirus (HPV), when the skin mucosa is broken, HPV will invade the epithelial cells through the break, the virus replicates in the cells, multiplying, causing abnormal proliferation and differentiation of epithelial cells, resulting in The virus replicates and multiplies within the cells, causing abnormal proliferation and differentiation of epithelial cells, resulting in the appearance of superfluous skin surface. Mostly manifested as skin color or light brown small grains, the surface is elevated, rough, round or oval, hard texture; 3, fat grains: mostly due to excessive oil secretion on the face, incomplete cleaning, or excess skin nutrition, fat accumulation. White fatty grains the size of a pinhead can be seen, mostly around the eyes; 4, acne: mostly caused by endocrine disorders, excessive secretion of sebum on the face, resulting in discharge obstacles blocking pores, forming acne, conical papules, usually affected by factors such as staying up late, addiction to sweets and spicy food. Patients are advised to pay attention to facial cleanliness, maintain a light diet, eat less spicy, stimulating and greasy food, maintain good habits, and seek medical treatment if symptoms are severe.