A small red spot on the glans can be caused by glansitis, excessive friction of the glans and other factors. 1. glans: chronic prepuce glans, mycosis glans, ring ulcer glans, trichomonas glans and other inflammatory diseases, can be localized in the glans to appear small red dots like performance, the early may have no abnormal feeling, with the progress of the disease, the glans can be congested, vesiculation, or even bleeding and other manifestations. 2. Excessive friction of the glans: frequent sexual life or frequent masturbation, or friction stimulation of the glans, can lead to localized redness and swelling of the performance of the glans, can appear on the glans small red dots. 3. Other conditions: when penile cancer, genital herpes and other diseases occur, also in the early stage of the glans there are small red dots in the glans that do not itch. When there is a small red dot on the glans, you should consult a doctor in time, and under the guidance of a specialist physician, you should actively carry out appropriate treatment, which can help to alleviate the uncomfortable symptoms as soon as possible.