Blood blisters in the scrotum is recommended to go to the hospital for further examination, the possible causes are: 1, scrotal skin infection, infection can appear epidermal rupture, accompanied by skin tension blister formation. If combined with bleeding can be manifested as blood blisters, accompanied by local pain and erosion. It is necessary to carry out local bacterial smear examination and give anti-infection drug treatment after diagnosing the infection.2. If there is contusion, blow, bump and burn of scrotal skin, blisters can appear. Early blisters, later combined with bleeding, can be manifested as blood blisters, accompanied by pain, the need for local disinfection. If it is a burn, you can use burn cream to treat it. 3, herpes virus infection, after infection, there can be clusters of small blisters, combined with bleeding later manifested as blood blisters, accompanied by local pain. Need to carry out herpes virus test, if diagnosed as herpes virus infection, then need to use antiviral drugs for treatment.