Genital herpes sores can appear on the penis, scrotum, vulva, vagina, cervix, urethra, anus, rectum, buttocks, and inner thighs. The virus doesn’t restrict itself to one spot. Because it lives in a cluster of nerves at the base of the spine, it can resurface anywhere those nerves reach, which covers a surprisingly wide area between the waist and mid-thigh.
Common Locations in Men
In men, the most typical sites are the shaft and head of the penis and the foreskin (in uncircumcised men). Sores also appear on the scrotum and at the urethral opening. When lesions develop inside the urethra, the visible sign isn’t a sore you can see but a burning sensation during urination, sometimes with a clear discharge. The skin around the anus and on the buttocks is another common area, particularly (but not exclusively) in men who have receptive anal sex.
Common Locations in Women
In women, sores most often show up on the outer lips (labia majora), inner lips (labia minora), and the skin around the vaginal opening. The cervix is another frequent site, especially during a first outbreak. Cervical lesions are essentially invisible without a clinical exam, which is one reason a first episode in women sometimes goes unrecognized. Sores can also develop inside the vagina, around the urethra, on the perineum (the skin between the vaginal opening and the anus), and around or inside the anus.
Why Sores Appear Beyond the Genitals
Many people are surprised when an outbreak shows up on their buttocks, inner thighs, or lower back rather than directly on the genitals. This happens because of the nerve pathway the virus uses. During the initial infection, herpes travels from the skin surface into a bundle of nerves called the sacral ganglia, located near the base of the spine. It stays dormant there between outbreaks.
When the virus reactivates, it travels back down the nerve branches to the skin. The sacral ganglia feed into the pudendal nerve, which has branches running to the external genitals, perineum, anus, buttocks, and upper thighs on both sides of the body. A reactivation can surface along any of these branches, and research published in the Journal of Infectious Diseases found that simultaneous reactivations at multiple sites are common, because the virus can wake up in several nerve branches at once. This means one outbreak might produce a sore on the buttock and another near the genitals at the same time.
What the Sores Look Like
The classic progression starts with a tingling, burning, or itching sensation in one area, sometimes called the prodrome. Within a day or two, small red bumps appear and quickly fill with clear fluid, forming blisters. These blisters burst within a few days, leaving shallow, painful ulcers that gradually crust over and heal. A first outbreak typically lasts two to four weeks. Recurrent outbreaks are usually shorter and less severe.
Not every outbreak follows this textbook pattern, though. Atypical presentations are common enough that they cause real diagnostic confusion. Instead of obvious blisters, herpes can show up as small skin fissures or cracks (particularly on the vulva or around the anus), a patch of redness without blisters, recurring irritation that looks like a yeast infection, or mild urethritis with no visible sores at all. One case series documented a presentation as nothing more than a single small, painless red spot on the labia. These atypical forms are a major reason genital herpes is underdiagnosed.
HSV-1 vs. HSV-2 and Location
Both HSV-1 and HSV-2 can cause genital herpes, and during a first outbreak, the sores look identical regardless of type. The meaningful difference is what happens afterward. HSV-2 is far more likely to reactivate in the genital area, producing multiple recurrences per year in many people. HSV-1 genital infections tend to recur much less frequently, often just once or twice before becoming dormant for years or permanently. The location of sores during recurrences doesn’t reliably differ between the two types; both follow the same sacral nerve pathways.
Spread to Other Body Sites
During a primary (first) infection, when the immune system hasn’t yet built antibodies, the virus can spread from the genitals to other parts of your own body through touch. This is called autoinoculation. The two most notable examples are herpetic whitlow, where the virus transfers to a finger, and ocular herpes, where it reaches the eye and can cause conjunctivitis or a more serious corneal infection. This risk drops significantly after the first episode, once your body has mounted an immune response, but it’s the reason avoiding touching active sores and washing hands if you do is practical advice during an initial outbreak.
Getting an Accurate Diagnosis
If you have visible sores, the most reliable test is a nucleic acid amplification test (NAAT), sometimes called a PCR swab, taken directly from the lesion. These tests detect viral DNA with sensitivity ranging from about 91% to 100%. Viral culture, the older testing method, is significantly less sensitive and becomes even less accurate as sores begin to heal. Timing matters: fresh, fluid-filled blisters give the most reliable results. Once a sore has crusted over, a swab is much more likely to come back negative even if herpes caused it.
A negative swab from a healing or older lesion does not rule out herpes, because viral shedding is intermittent. Swabbing skin that has no active sores is similarly unreliable and isn’t recommended as a diagnostic approach. If your sores have already healed before you can get tested, a type-specific blood test for HSV antibodies can confirm whether you carry the virus, though it can’t tell you the location of your infection.