Genital herpes - NHS - Anal blisters sex
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All of these infections, including HSV, are acquired through sexual contact. red bumps or white blisters; pain and itching around the anus. Herpes is a viral infection that can cause blisters and sores around the mouth, genitals, or anus. When it does, people with anal herpes may notice blisters or sores in or around their anus. herpes simplex virus type 2, or HSV-2, which mostly affects the genitals and anus.