What causes itching outside the vagina

There are many reasons for itching on the outside of the vulva. It may be caused by some fungal infection. In addition, if you do not pay attention to the hygiene of the private parts, it is easy to cause itching symptoms. If you have an allergic constitution, it is also easy to cause such symptoms. When itching occurs on the outside of the vulva, you should go to the hospital for examination in time to avoid greater harm to your health.

1. Local skin uncleanness: Some women use toilet paper improperly, and the skin of the vulva is soaked by menstrual blood, vaginal secretions, and even urine, feces and sweat, which causes chronic inflammation of the local skin and causes vulva itching.

2. Vaginal Trichomonas infection: When the acidity of the female vaginal mucosa decreases, the production of lactic acid decreases, making vaginal Trichomonas infection more likely to occur, which manifests as foamy leucorrhea and itching of the vulva.

3. Fungal infection: For women with diabetes or long-term use of antibiotics that cause imbalance of normal flora, Candida albicans in the fungus can easily invade the vulva and vagina, causing fungal vulvar and vaginitis, often with bean curd-like leucorrhea and vulvar itching.

4. Parasitic infection: Pinworms mainly attack young girls, but adult women can also be infected. When the anus relaxes at night, pinworms crawl out of the rectum and swim to the vulva to mate and lay eggs, irritating the skin and mucous membranes of the vulva, causing local itching. When scabies is caused by scabies infection, the external skin lesions are the most serious, so local itching is also the most obvious. Pubic lice are manifested by severe itching in the area where pubic hair grows, and grayish-white millet-sized nits or lice may be found at the base of the pubic hair or on the hair shafts.

5. Drug rash: "Fixed drug rash" caused by women with allergic constitution taking sulfonamides or other drugs often occurs at the junction of the skin and mucous membrane of the vulva. In addition to local itching, it may be complicated by erosion and exudation. Vulvar itching may also occur if allergic reactions and contact dermatitis occur when using drugs for vaginal washing or vaginal insertion.

6. Skin diseases of the vulva: The skin lesions of tinea cruris often extend to the vulva, causing severe local itching. The local itching caused by vulvar eczema and neurodermatitis is more severe. The former is manifested as papules and blisters with unclear local skin boundaries and erosion exudate, while the latter often causes thickening of the skin with lichenification due to scratching. In addition to causing vulvar itching, vulvar leukoplakia is often accompanied by vulvar malnutrition and skin atrophy.