Genital herpes in women typically appears as a cluster of small, fluid-filled blisters on or around the vulva, vaginal opening, or surrounding skin. These blisters break open within a few days, leaving shallow, painful sores that eventually scab over and heal. The appearance changes as an outbreak progresses, and what you see depends on whether it’s a first outbreak or a recurring one.
How the Sores Progress Through Stages
A herpes outbreak doesn’t start with visible sores. Most women first notice tingling, itching, or a burning sensation in a specific spot on or near the genitals. This warning phase, called the prodrome, can last up to 24 hours before anything shows up on the skin. During recurring outbreaks, many women learn to recognize this sensation as a reliable signal of where sores are about to appear.
After the tingling phase, a small reddened patch develops, followed by one or more tiny blisters filled with clear or slightly cloudy fluid. These blisters are fragile. Within a day or two, they rupture and leave behind open, shallow sores that look raw or like small scrapes on the skin. The sores are often described as looking more like a scratch or open area than a traditional blister by the time most women notice them. These open sores are the most painful stage and also the most contagious.
Over the following days, the sores dry out and form scabs or crusts. Complete healing from start to finish takes about 2 to 6 weeks for a first outbreak. Recurring outbreaks are shorter and less severe, often clearing up in a week or so.
Where Sores Appear
In women, herpes sores most commonly show up on the outer lips of the vulva (labia majora), the inner lips (labia minora), around the vaginal opening, and on the perineum (the skin between the vaginal opening and anus). Sores can also develop on the buttocks, inner thighs, around the anus, and, less commonly, on the cervix, where they may not be visible or cause obvious symptoms. It’s possible to have sores in more than one location during a single outbreak, especially the first time.
First Outbreak vs. Recurring Outbreaks
The first outbreak is almost always the worst. It tends to produce more sores over a larger area, and the sores are typically deeper and more painful. Many women also experience flu-like symptoms during their first episode: fever, body aches, headache, and swollen lymph nodes in the groin. The whole episode can last 2 to 4 weeks. Symptoms usually appear 2 to 12 days after exposure, though some people don’t develop noticeable symptoms for weeks, months, or ever.
Recurring outbreaks look different. There are usually fewer sores, confined to a smaller patch of skin, and they heal faster. Systemic symptoms like fever are uncommon. Nearly all women with HSV-2 (the type most associated with genital herpes) experience recurrent outbreaks after their first episode, though the frequency varies widely. Some women have several outbreaks a year, others may go years between episodes. Outbreaks generally become less frequent over time.
It’s worth noting that the virus can shed from the skin even when no sores are visible. This means herpes can be transmitted without any obvious signs of an outbreak.
How to Tell Herpes From Other Conditions
Several common conditions in the genital area can look similar to herpes at a glance, which is why visual identification alone isn’t always reliable.
- Ingrown hairs: These appear as raised, red bumps that may look like pimples. They’re typically warm to the touch, and you can often see a hair trapped at the center. Herpes sores, by contrast, start as clusters of tiny blisters rather than a single firm bump, and they don’t have a visible hair inside.
- Syphilis sores (chancres): A syphilis sore is usually a single, firm, painless ulcer. Herpes sores are typically multiple, grouped together, and painful. Both infections can look atypical, though, so testing is the only way to know for sure.
- Yeast infections or contact irritation: These cause redness, swelling, and sometimes small cracks in the skin, but they don’t produce the characteristic grouped blisters that herpes does. The itching pattern is also different: yeast tends to cause generalized itching, while herpes tingling is localized to the spot where sores will form.
How Herpes Is Confirmed
A healthcare provider can sometimes recognize herpes by looking at the sores, but visual diagnosis isn’t foolproof. The most accurate approach is a swab test taken directly from an open sore. This works best when the sore is fresh, not yet crusted over or in the healing stage. Once sores have scabbed, swab tests become less reliable. Blood tests can detect herpes antibodies, but they indicate whether you’ve been infected at some point rather than confirming that a current sore is herpes.
How Common It Is
Genital herpes is far more common than most people realize. According to CDC data from 2015 to 2016, about 15.9% of women aged 14 to 49 in the United States tested positive for HSV-2, nearly double the rate in men (8.2%). When you factor in that HSV-1 (the type traditionally associated with cold sores) can also cause genital herpes through oral sex, the actual number of women with genital herpes infections is higher still. Many of these women never develop recognizable symptoms, which is one reason the virus spreads so easily.