A circle of white granules at the edge of the glans often needs to be judged according to the size and location of the rash and whether it is accompanied by other symptoms, and treated according to the cause. The more common causes that can lead to a circle of white particles on the edge of the glans are the following: 1, pearly penile papules: is a more common physiological developmental variant of the disease, can be manifested as a bead-like arrangement of small white pearl-like papules on the edge of the penis head, usually do not grow, also not accompanied by other symptoms, for daily life does not affect, no need for treatment, but if individuals are more concerned about The actual fact is that you can get rid of it by using laser, freezing and other methods; 2, acne warts: is due to human papillomavirus infection resulting in a skin disease, often manifested in the penis part of the papillary rash symptoms, the rash can gradually increase, fusion become larger, there may be bleeding, ulcers and other performance, and accompanied by redness, pain, odor and other symptoms, you need to seek medical attention in a timely manner, under the guidance of the doctor to choose laser, the drug, surgery and so on. The common drugs are Imiquimod cream and so on. In addition, the penile ligament parapapapillary papillary fibroma, simple sebaceous gland ectopic disease, as well as the skin at the penis by bacteria or viruses such as herpes simplex infection, etc., may also cause patients to appear a circle of white particles around the edge of the penis head symptoms, it is recommended that if the patient has heavy symptoms or accompanied by other symptoms timely to the regular hospital for consultation, clear cause, symptomatic treatment.