It is not normal to have black spots on the glans. The normal glans should be flat and smooth, if there are black spots on the glans consider the following reasons: first, consider the melanin deposition is more, if the melanin fusion into a patch can form a plaque. Secondly, it is considered to be a rare melanoma, which is a malignant lesion of the skin and mucous membrane, and is relatively rare clinically, but with a high degree of malignancy. Thirdly, it is considered as hemangioma, if the rupture of small subcutaneous hemangioma will lead to subcutaneous bruising and present black spots. Fourthly, it is considered that the patient is rough during intercourse, which causes subcutaneous bleeding of the glans penis and presents black spots. The above are the specific reasons for the black patches on the glans of the patient. It is recommended that the patient should go to a regular hospital for examination and treatment under the guidance of a doctor if such a situation arises.