Blackheads are not mites. The blackhead is blackhead acne, and mites are a class of parasites that exist widely on the surface of the body and in the living environment.1. Blackheads: The sebum in the pores of the skin is clogged, and the surface layer is directly exposed and oxidized after contact with air and dust, and then blackened to form blackheads. Blackheads are commonly found in teenagers, mostly on the face, forehead and back, especially on the nose, and are characterized by black spots in the obviously enlarged pores, which are shaped like small worms after squeezing out, with black tips, which are not really small worms, but only oxidized lipid plugs at the tips; 2. Common mite types include dust mites, pink mites, worm mites, scabies mites, etc. Among them, worm mites are mainly parasitic in hair follicles and sebaceous glands, feeding on sebum in the facial skin, and can secrete excretion, leading to inflammation of hair follicles in susceptible people. The mites have no obvious symptoms when they are infected in small amounts, and may appear as red papules when they multiply more rapidly.