A circle of small particles on the glans is usually caused by eczema, pearly rash or warts and other diseases. Patients should treat the symptoms. 1. Eczema: Eczema is caused by a variety of reasons, the glans and the coronal groove may appear tiny particles, pay attention to the local cleanliness, can be used under the guidance of the doctor to relieve the itching of some anti-allergic drugs. 2. Pearl Rash: Pearl Rash is a physiological and structural change, which may also be related to circumcision. On the back of the glans it can partially or completely encircle the glans, the color of the lesion is mostly white and light red, and the local area can be slightly red and swollen, without pain or ulcers. 3. acromegaly: acromegaly is a contagious disease caused by human papilloma virus infection, manifestation of perianal organisms, male genital organisms; female genital organisms, female vagina, cervix organisms, and a few can appear perianal itching or pain. The initial stage of superfluous organisms can be the size of a needle tip or a grain of rice, if left untreated can form huge warts, the size of which can reach the palm of the hand. Patients should go to the hospital for consultation to determine the cause of the disease and then follow the doctor’s instructions to receive treatment. If you find a circle of small particles on the glans, it is recommended that the patient go to the hospital in time, under the guidance of the doctor.