Black spots on glans are commonly found in cases of glans prepuce, hyperpigmentation, frequent sexual life, and base cell carcinoma. Black spots on glans formed for a long time are generally considered as benign diseases, and the possibility of malignant diseases occurring is low. Patients are usually nervous when black spots appear on the glans, most of them are discovered by accident, and they may have existed for a long time when they are discovered. Patients who are circumcised or circumcised are more likely than normal to develop hyperpigmentation due to long-term prepuce stimulation. Repeated irritation from glans vulgaris can also form dark spots, and they may be scattered. Many people worry that black spots on glans are malignant tumors, but generally speaking, there is no need to worry, the probability of penile cancer is still relatively low. Once black spots on glans are found, regular observation should be made, and if the black spots on glans grow faster in a short period of time, we should be alert and go to hospital for pathological biopsy if necessary to clarify the nature. If it is malignant tumor, it is recommended to perform surgery in time. In summary, black spots on the glans are mostly seen as pigmentation caused by inflammatory stimulation, and generally do not require special treatment. If the black spots increase gradually within a short period of time, it is recommended to go to the hospital for pathological biopsy in time to clarify the nature of the black spots.