Red pimples on the bridge of the nose, i.e., red pimples on the bridge of the nose, may be caused by folliculitis, rosacea, facial corn lupus and other reasons. 1. Folliculitis: mainly due to inflammation of hair follicles caused by bacteria, fungi and other pathogenic bacteria, due to the stimulation of inflammation, the phenomenon of long red pimples on the bridge of the nose can occur. 2. rosacea: it is a chronic inflammatory skin disease characterized by persistent erythema with dilated capillaries, which may be related to heredity, abnormal neurovascular regulation, microbial infection and other reasons. Patients may have erythema or capillary dilatation on the bridge of the nose on the basis of sebaceous gland hypertrophy hyperplasia and fibrosis, thus appearing the phenomenon of long red papules on the bridge of the nose. 3. Facial milia lupus: its etiology is still unclear, is a chronic skin disease. It is a chronic skin disease. Its typical manifestation is the symmetrical distribution of reddish or light brown papules with the size of millet grains to the size of green beans on the face, which can appear on the eyelids, cheeks, and the bridge of the nose, and so on. In addition, the bridge of the nose long red pimples patients can also be seen in other diseases, it is recommended to go to the hospital in a timely manner, in accordance with the doctor’s instructions for treatment, to avoid delaying the condition.