Small sarcoma-like growths on the testicles can be considered skin lesions such as molluscum contagiosum, condyloma acuminatum, or dermatophytes. 1. Molluscum contagiosum: It is a contagious skin disease caused by molluscum contagiosum virus infection. The skin lesions are characterized by characteristic waxy shiny papules or nodules with depressed tips that can extrude cheese-like molluscum contagiosum. The main through direct contact infection, patients are often infected in public bathrooms or swimming pools, can also be infected through sexual contact. 2. Acute warts: mostly due to unclean sex, infection with human papilloma virus, in the glans, penis and perineum first appeared small pimples, the tip of the sharp, and then can gradually increase, showing sessile or stalked type, warts for white or pink, and so on. 3. skin warts: also known as soft fibroma, preferably in the lower trunk, for a single pocket-like swelling, the root of the thin tibial, touch soft and non-elastic, normal skin color, occasionally due to the tibial torsion of the pain, but also can occur in the inflammation and necrosis. Sarcoma-like lesions on the scrotum and perineum may also have other causes, it is recommended to seek medical attention in time to clarify the nature of the targeted treatment.