Patients with raised bumps on the surface of the scrotum may first consider whether they are caused by allergic factors, such as allergy to the material of underwear, which may cause itching, stinging, and rash, resembling small bumps, and require prompt replacement of cotton clothing. In severe cases, anti-allergy medications such as promethazine and chlorpheniramine maleate should be applied as prescribed by the doctor to improve the symptoms. If you can’t get rid of the problem or have other symptoms, you should consider dermatological diseases, which are caused by improper daily cleaning and unclean sex life. It is often caused by flocculent epidermophytes, Trichophyton rubrum, Trichophyton rubrum, etc. Sometimes Candida albicans also invades the inguinal area and presents erythematous desquamative patches, the edges of which may have papules, specifically the scrotal surface projections can be manifested as annular erythematous patches with raised edges, accompanied by pruritus, commonly used drugs including clotrimazole cream, miconazole nitrate cream, ketoconazole ointment, terbinafine cream and other drug therapy; 5. scabies: scabies is a contact infectious skin disease caused by scabies mites in the epidermis of human skin. It can cause papules or nodular bumps on the surface of the scrotum of patients, usually cone-shaped, bright red, shaped like small bumps, accompanied by heat and pain, and its treatment medication includes salicylic acid ointment. Scabies nodules may be formed by local injection of glucocorticoids. In addition, the effects of sebaceous cysts, genital herpes and other factors may also cause raised bumps on the surface of the scrotum and require medical consultation for differential diagnosis so that measures can be taken for targeted treatment.