Itchy vaginal lips (the medical term is the vulva) are most often caused by irritation from everyday products, a yeast infection, or hormonal changes. It’s one of the most common gynecological complaints, and in many cases the fix is straightforward once you identify what’s behind it.
Yeast Infections and Bacterial Vaginosis
A yeast infection is one of the first things to consider when your vulva is itchy and red. Yeast infections produce a thick, white discharge that can look like cottage cheese. The discharge is usually odorless. Along with itching, you may notice swelling, burning during urination, or discomfort during sex.
Bacterial vaginosis (BV) is actually the most common vaginal infection in women ages 15 to 44, but it’s less likely to cause noticeable itching. BV tends to show up as a thin white or gray discharge with a strong fishy smell, especially after sex. Many people with BV have no symptoms at all. If your main complaint is intense itching with thick discharge, a yeast infection is the more likely culprit. If it’s mostly odor and thin discharge, BV is worth investigating.
Products That Irritate the Vulva
The skin on your vulva is thinner and more sensitive than the skin on the rest of your body, which makes it especially reactive to chemicals. Contact irritation is one of the most overlooked causes of vulvar itching, and the offending product is often something you’ve used for years without problems.
Common triggers include soap, bubble bath, shampoo and conditioner (which runs down your body in the shower), scented laundry detergent, dryer sheets, perfume, douches, talcum powder, and even dyes in toilet paper. Menstrual pads, panty liners, and tampons can also cause irritation, particularly scented varieties. If the itching started after switching any product, or if it comes and goes in a pattern that lines up with your period (when you’re using pads or tampons), irritation is a strong possibility.
Hormonal Changes and Menopause
Declining estrogen levels cause the vaginal and vulvar tissues to become thinner, drier, less elastic, and more fragile. This is called genitourinary syndrome of menopause, and it commonly causes dryness, burning, and itching. It affects people during perimenopause, after menopause, and sometimes during breastfeeding, when estrogen levels also drop.
The itching from hormonal changes tends to be persistent rather than coming and going. It often gets worse over time if untreated, and you may also notice discomfort during sex or a feeling of dryness that doesn’t resolve on its own. Topical estrogen treatments can restore moisture and thickness to the tissue, so this is worth bringing up with a healthcare provider if the timeline fits.
Sexually Transmitted Infections
Trichomoniasis is the STI most associated with vulvar itching. It can cause itching, burning, redness, and soreness of the genitals, along with a thin discharge that may be clear, white, yellowish, or greenish with a fishy smell. The tricky part is that about 70% of people with trichomoniasis have no symptoms at all, so a negative self-assessment isn’t reliable. Genital herpes can also cause itching, particularly before an outbreak, along with tingling or burning sensations.
If you’ve had a new sexual partner or unprotected sex and the itching started within a few weeks, testing is the fastest way to rule this out or get treatment started.
Skin Conditions on the Vulva
Lichen sclerosus is a chronic skin condition that causes patchy, discolored, thin skin on the vulva. It can appear as smooth white patches or blotchy, wrinkled areas. Symptoms include intense itching, soreness, burning, easy bruising, and skin that tears or bleeds easily. It can also cause painful sex. Lichen sclerosus isn’t caused by poor hygiene or infection. It’s an inflammatory condition that needs ongoing management, typically with prescription creams.
Eczema and psoriasis can also affect the vulva, causing itching, redness, and flaking. If you have eczema or psoriasis elsewhere on your body and develop vulvar itching, the same condition may be showing up in a new location.
How to Reduce Irritation at Home
Cotton underwear is one of the most consistently recommended changes. Cotton breathes, wicks away moisture, and is less likely to trigger an allergic reaction than synthetic fabrics. If you’re sensitive, plain white cotton is the safest option. Underwear labeled as cotton-blend or featuring a “cotton crotch panel” doesn’t offer the same protection, since the surrounding synthetic fabric still traps heat and moisture.
Going without underwear at night can help, especially if you’re dealing with an active yeast infection or vulvar irritation. Loose pajamas or boxer shorts increase airflow and promote healing. During the day, change your underwear if it becomes damp or if vaginal discharge builds up.
Switch to a hypoallergenic, fragrance-free, dye-free laundry detergent. Some people find that running underwear through the rinse cycle twice helps remove residue. Wash new underwear before wearing it to clear out chemicals from manufacturing and packaging. Avoid wearing panty liners daily unless you need them for incontinence or your period, since they reduce breathability and can worsen irritation.
For washing the vulva itself, warm water is sufficient. If you use soap, choose something unscented and mild, and keep it on the outer skin only. Douching disrupts the vaginal environment and frequently makes itching worse.
Signs That Need Medical Attention
Vulvar itching that lasts more than a week or two despite removing potential irritants is worth getting evaluated. Itching paired with any of the following warrants a visit sooner: new lumps or sores, changes in skin color (white patches, darkening, or redness that doesn’t fade), bleeding or open sores, thick or unusual discharge, or pain during sex. A provider may examine the area visually, test for infections, or in some cases take a small tissue sample to check for conditions like lichen sclerosus. Persistent itching with visible skin changes is the combination that most often leads to further testing.