What causes vaginal itching and when should I see a doctor?

Bottom lineVaginal itching is most often caused by a yeast infection (intense itch, thick white discharge), irritants like scented products and douching, low estrogen, skin conditions, or sometimes BV or an STI; see a doctor if itching comes with abnormal discharge or odor, doesn't settle in a few days, keeps returning, or involves sores or bleeding.

Vaginal or vulval itching is common and usually has a treatable cause. The key is matching the itch to its likely source rather than guessing.

Common causes

• Yeast infection (thrush) - the most common cause of intense itching, usually with thick, white, cottage-cheese-like discharge and no strong odor.
• Bacterial vaginosis (BV) - less itchy than yeast, but possible; the giveaway is a thin gray discharge with a fishy smell.
• Irritants - scented soaps, "feminine washes," wipes, bubble baths, laundry detergent, and douching can all inflame delicate skin. This is one of the most overlooked causes.
• Skin conditions - eczema, dermatitis, or lichen sclerosus can affect the vulva.
• Low estrogen - during perimenopause, menopause, or breastfeeding, thinner tissue itches and feels dry.
• Sexually transmitted infections - trichomoniasis, herpes, or others can cause itching.
• Sweat and friction - tight or non-breathable clothing traps moisture and heat.

What to do first

Stop anything scented or harsh, switch to plain cotton underwear, and wash only the vulva with warm water. Many irritation-based itches settle within days.

When to see a doctor

• Itching with abnormal discharge, odor, or burning
• Itching that doesn't improve after a few days or keeps coming back
• Sores, blisters, or a rash
• Bleeding between periods or after sex
• Itching after a new partner or possible STI exposure

Do not default to an over-the-counter antifungal unless you know it is yeast, because it won't help BV, irritation, or an STI. For the full picture, see our complete vaginal health guide.

Log itching alongside discharge and your cycle in Femora so patterns and triggers become clear.