There are white particles on the glans then the possible causes are as follows: first, the penis pearl-like papules, it is mainly distributed around the glans coronal groove or both sides of the foreskin tether, manifested as white raised small particles or small granule-like changes, not accompanied by any pain, soft texture, no abnormal discharge or bleeding when touched, not accompanied by local abnormal smell, can be long-term presence, volume, size, number No significant changes in volume, size, number, etc. occur. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The second is the fact that the human papillomavirus is infected through unclean sexual contact. The white granular changes in several parts of the body are gradually increasing in volume, number and size, and fusing with each other to form cauliflower-like masses, accompanied by pain, bleeding or discharge. Local excision or laser electrocautery is required, and antiviral treatment is needed to prevent recurrence after diagnosis.