A lot of small red dots on the glans is most commonly caused by circumcision and glansitis, contact dermatitis, and may also be seen in pearly penile papules and other diseases. It is recommended that patients go to the dermatology department of the hospital in a timely manner to improve the relevant examination to help confirm the diagnosis and take appropriate treatment. 1. circumcised glans: patients with bacterial glans will appear on the surface of the glans skin red dots, some patients will also appear rash, erythema, localized erosion, itching symptoms. 2. Contact dermatitis: after skin or mucous membrane contact with allergens, allergic reaction occurs in the contact area. Manifested as erythema, swelling, pimples, blisters, or even blisters, it can be manifested as the phenomenon of a lot of small red dots on the glans. 3. Pearly penile papules: the cause of penile pearly papules is not yet known, this disease may belong to a physiological developmental abnormality, can be manifested as the coronal edge of the penis, the coronal sulcus or glans and other parts of the pearly translucent pimples, can also be manifested as a lot of small red dots on the glans. Many reasons can cause patients with small red spots on the glans, it is recommended to actively go to the hospital, follow the doctor’s instructions for targeted treatment. Daily life should pay attention to the glans clean and dry, try to eat a light diet, eat a moderate amount of fresh vegetables, fruits, avoid eating spicy, stimulating food.