The face is rough to the touch with granularity, which may be a phenomenon of dry skin or a manifestation of some skin diseases, such as keratosis pilaris, closed acne, folliculitis, and so on. 1. Keratosis pilaris: a chronic follicular keratosis pilaris, lesions for the size of a pinhead and the top of the sharp follicular papules, the color of skin color, reddish-brown or brown, occasionally mild itching. Keratosis pilaris is mostly related to heredity, but also with picky eating, nutritional imbalance and other factors, you can usually eat more vitamin A-rich vegetables and fruits. 2. Closed pimples: non-inflammatory lesions for acne, usually lesions are about 1mm size papules, no obvious follicle openings, acne further development will become inflammatory lesions, such as inflammatory papules, pustules, nodules and cysts and so on. It occurs on the face and upper chest and back, and is common in adolescents. 3. Folliculitis: red follicular pimples, granular to the touch, itchy or painful, pustules will appear in the center of the pimples within a few days, surrounded by a red halo. Caused by bacterial infection, the lesions are mostly on the scalp, face, neck, buttocks and vulva. When the face feels grainy and rough to the touch if the symptoms continue to worsen, or even inflammation, you need to go to the hospital in time, under the guidance of the doctor for appropriate treatment.