Core Tip: So what? When a red pimple appears in the glans and urethra, many men don't think so at first, and even delay, which eventually leads to the delay of treatment opportunity. There are many potential threats hidden in the mass of red papules in glans urethra. Bacterial infection and unclean sexual intercourse can induce the production of red papules. Therefore, when patients find problems, they should go to regular hospitals for examination and treatment in time to avoid causing more harm. Etiological analysis? 1, which may be caused by condyloma acuminatum: the patient's skin lesions are small reddish papules at first, and then gradually grow up, with uneven soft nipple-like lesions on the surface, some cauliflower-like, pedicled roots, wet and dusty surfaces, erosive exudates on the surface for a long time, itching and scratching, secondary bacterial infection, purulent secretions on the surface, odor and pain. 2, may be caused by genital herpes: more common in male foreskin, glans penis, coronary sulcus and penis, occasionally seen in urethral orifice. Primary genital herpes is often accompanied by systemic symptoms such as general malaise, low fever and headache, and the local gonorrhea has become swollen. Primary or recurrent genital herpes may be accompanied by dysuria, acute urinary retention, herpetic carbuncle, encephalitis and endometritis, in addition to papules on glans penis and urethral orifice, which may be caused by scrotal eczema. It is the most common scrotal disease, an allergic reaction and a common skin disease of male sexual organs. Scrotal eczema is commonly known as "hydrangea wind" and "cell leakage sore" among the people. Scrotal eczema is the most common eczema. After infection, the disease itches badly and is stubborn. Patients often suffer from pain or secondary infection due to scratching and improper stimulation. 4. It may be caused by foreskin balanitis: the accumulation of impurities between foreskin and glans, that is, scales, stimulates the inflammation of local foreskin and mucosa, that is, foreskin balanitis, which will lead to penis inflammation and small papules.