1. Fungal vaginitis.
Vulvar and vaginal itching, vulvar flushing, with beanbag-like leucorrhea, odor, scratching can cause eczematous changes of vulvar dermatitis.
2. Trichomoniasis vaginalis.
Itching of vulva and vagina, foamy leucorrhea, often with special odor, and eczematous changes of vulvar dermatitis after scratching. Doing smear examination of vaginal secretions can be distinguished from the above disease samples.
3, pubic lice disease.
Pubic lice often lodge on the surface of the skin or attached to the root of the pubic hair, pubic lice eggs are grayish-white and the size of a pinhead. The bite of pubic lice and their venom and excrement can lead to itchy skin, flaking, and secondary eczema-like changes and folliculitis.
4. Pinworm infection.
When the anus is relaxed at night, the pinworms crawl out of the rectum and swim to the vulva to mate and lay eggs, and stimulate the mucous membrane of the vulva skin, causing local itching.
5.Scabies infection.
When scabies is caused, the external lesions are the most serious, so the local itching is also the most obvious.
6, local skin impurity.
Some women use improper toilet paper method, vulvar skin by menstrual blood, vaginal secretions, and even urine, feces and sweat impregnation and local skin chronic inflammation, thus causing vulvar itching.
7. Drug allergy.
Allergic women taking sulfonamide or other drugs caused by “fixed drug rash”, often occurs in the vulva skin mucous membrane junction, in addition to local itching, can be complicated by erosion, exudate. The use of drugs for vaginal douching or intravaginal insertion, such as allergic reactions and contact dermatitis can also occur vulvar itching.
8. Vulvar skin diseases.
The skin damage of tinea cruris often extends to the vulva, causing intense local itching. Eczema and neurodermatitis of the vulva cause even more intense local itching, the former manifesting as papular blisters and vesicular ooze with unclear local skin boundaries, the latter often showing thickened skin moss with mossing due to scratching. In addition to local itching, vulvar leukoplakia is often accompanied by vulvar dystrophy and skin atrophy.
9, viral infection.
Warts mostly occur in the female vaginal wall, the cervical opening and vulva, but also appear with foul-smelling leucorrhoea. The infectious molluscum contagiosum that occurs in the vulva is mostly manifested as a circular papule with a navel-like depression in the center, which can also cause itching in the vulva. The actual genital herpes is usually a bright blister with the urethra and vaginal wall, in addition to local itching.
10. Allergy to sexual intercourse:
It is an allergic reaction that occurs during the life of both sexes. There are allergies to semen, condom allergies, and friction allergies, respectively.
11, other causes.
When women suffer from diabetes, due to the stimulation of the vulvar skin by urine sugar, easy to complicate toxic bacterial vulvovaginitis and vaginitis, causing vulvar itching. When suffering from liver and gallbladder and other diseases jaundice, due to the increase of bilirubin in the blood, the skin stimulated by bile salts can also occur vulvar itching. In addition, some women may also suffer from itching of the vulva due to psychological factors when they are stressed.