Small bumps on the epidermis of the glans are mainly considered to be related to pathological factors such as glansitis, pearly pimples, condyloma acuminatum and penile cancer. 1. Glans inflammation: Candida infection, mostly related to unclean sexual intercourse, circumcision, etc., can cause the glans to appear pinhead-sized reddish pimples, which can be manifested as small pimples on the epidermis of the glans, and can be accompanied by itching, burning sensation and other symptoms. 2. pearly papules: mainly located in the coronal groove of the penis, can also surround the glans to appear reddish pimples, the cause of the circumcision, long-term inflammatory stimulation related to the glans epidermis can be manifested as small bumps on the glans epidermis of the symptom, part of the redness can be accompanied by other symptoms. 3. Condyloma acuminatum: caused by human papilloma virus infection, the initial stage can be manifested as small reddish pimples, with the development of canola pattern or corns like protrusion, can cause the symptoms of the epidermis of the glans pimples, but also accompanied by pain, itching, purulent secretion and other symptoms. 4. Penile cancer: it is mostly manifested as malignant cauliflower-like ulcerated lumps, which can cause small bumps on the epidermis of glans in the early stage. If there are small bumps on the epidermis of glans, it is recommended to consult doctor in time, and then treat it positively after clarifying the cause of the disease, so as to avoid delaying the condition.