Small red dots on the male glans may be caused by diseases such as glansitis, condyloma acuminatum, and penile pearl rash. 1. glansitis: glansitis is caused by infection, trauma, and irritation, and the local symptoms are mainly redness, swelling, erosion, and ulceration. Local stimulation due to inflammation may cause small red spots on the mucosa. 2. Condyloma acuminatum: Condyloma acuminatum is caused by human papilloma virus infection, the patient will appear in the glans, the coronary groove and other parts of the single, multiple or groups of small reddish or skin-colored warts. 3. Penile Pearl Rash: Penile Pearl Rash is a warty growth that occurs on the coronal edge of the penis and the coronal groove, usually without conscious symptoms, the cause of the disease may be related to local stimulation, physiological developmental variations. There are more reasons for men to have small red dots on the glans, it is recommended to consult a doctor for examination and clear diagnosis.