We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Causes Vaginal Blisters?

By Amanda R. Bell
Updated Mar 03, 2024
Our promise to you
The Health Board is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At The Health Board, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

There are many causes of vaginal blisters, most of which can be avoided with proper nutrition, practicing safe sex, and good hygiene. The most common causes of vaginal blisters are infections and sexually transmitted diseases (STDs). They can also be caused by poor nutrition, stress, clothing, and some recreational activities.

Blisters can develop on the vagina due to a bacterial or fungal infection. These infections can develop from wearing bathing suits or synthetic undergarments. The warm, moist environment that these items form can create a breeding ground for bacteria and fungus, which can cause vaginal blisters to form. Using pools or hot tubs that do not have the proper ratio of chemicals can also cause infections, and therefore blisters, to emerge.

STDs are one of the leading causes of vaginal blisters, especially genital herpes. This disorder causes groupings of blisters to form on and around the vagina; they are usually very painful and often burst and crust over. Herpes can be prevented by practicing safe sex, although it is not curable once it is contracted. Some medicines can be taken to reduce the amount of vaginal blisters and limit the possibility of transmission to a sexual partner.

Poor nutrition and tension can also cause vaginal blisters. When the body lacks the nutrients it needs or is creating large amounts of the hormones that go with stress, it can respond in strange ways; this may include developing blisters on the vagina. When a vaginal blister is caused by lack of nutrients or stress, it is usually just a single blister that is only painful when touched.

Certain types of underwear can also cause blisters on the vagina; tight jeans or pants especially when worn without undergarments can do the same. While many women love lacy panties, it is important to make sure that the crotch area is made of a breathable fabric such as cotton. Synthetic undergarments can trap moisture against the vagina, causing sores, or irritate the sensitive skin, also causing blisters. The same is true for tight pants. The friction caused by walking in tight pants can irritate the skin, resulting in the formation of blisters, much like the blisters that form on the back of the heels.

Some activities, especially horseback riding and bike riding, can also cause this condition. Much like the problem with clothing, these hobbies can create a great deal of friction in the vaginal area. To prevent blisters from developing when doing these activities, wear breathable clothing and items that are thick enough to reduce some of the chafing.

By wearing breathable clothing, taking care of themselves, and limiting the chances for infection, women can reduce their chances of developing blisters in this sensitive area. If they do develop, schedule an exam with a doctor to find out about the underlying cause of the blisters or sores. This can allow for the earliest and best treatment of the condition.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Discussion Comments

By anon947496 — On Apr 25, 2014

I had sex last night without a condom, and wore the same underwear, since I did not go home. I had a shower this morning and everything was fine, but I noticed halfway through the day that my underwear was chafing me. When I got home about three, I noticed what appeared to be a popped blister (the skin was still attached) about the size of the end of an eraser. I thoroughly examined myself and I did not see any other sores or blisters anywhere. Also it is not a perfect circle, and it is in the area where my underwear was chafing me on the outer flap of my vagina. I plan on getting myself checked but would appreciate some input.

By anon311558 — On Jan 02, 2013

I'm a 15 year old girl and two days ago I woke up with a fever. On that evening I was feeling tired, so I crossed my legs and started to lean back. My legs were crossed tightly due to my position but I didn't bother to move because I was so tired. After a few minutes, I stood up and my genital area hurt like hell. It was hard to walk with my legs rubbing one another.

So I got home and checked myself. It looked bad. There were like a few bumps that were transparent and a bit reddish looking near my vaginal opening which is swollen.

It hurts when I pee (not inside) because it's like peeing on a wound and it is so, so very painful even now. I surfed the net and I couldn't find a single match to what this is. I'm not seeing anyone and I've never had sex. Does anyone know what this is or how long will it stay? Please help.

By anon310272 — On Dec 21, 2012

Do ulcers/blisters have to be checked by doctor? is is 100 percent completely necessary? Also, can they have a white color about them?

By Valencia — On May 03, 2011

@Windchime - I do understand your feelings about ignorant people, but often they are reacting to old wives tales and half formed pieces of information. Most folk are equally able to take in more reliable facts just as well, so don't give up on spreading the word.

Having said that, there are some basic things everyone needs to think about. Women with vaginal blisters of any kind shouldn't share towels for instance.

Having had a genital herpes scare, (which thankfully was a false alarm, never thought I'd be grateful for a vaginal boil), I learned a lot about this topic. Before that I was as misinformed and confused about this topic as many others.

By Windchime — On May 03, 2011

Thanks for writing such a down to earth explanation of this subject. I know several people with genital herpes, and others who have had one off issues with vaginal blisters caused by other things.

Even though it's natural to feel freaked out by this kind of symptom, straightforward factual information helps you to understand what may be going on.

It is also invaluable in the fight against those who mistakenly think you can 'catch' things from people without having intimate contact. That kind of attitude hurts people beyond belief.

By angelBraids — On May 02, 2011

Considering the various ways genital sores can develop it's something that is likely to affect an awful lot of women in their lifetime. Please don't let the sensitive nature of vaginal sores or blisters delay medical treatment.

If you feel awkward see-ing your regular doctor have a look online for details of a well woman or STD clinic.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.