What is the cause of itching on one side of the vulva? How does the vulva itch more after washing

Pruritus vulvae is a common gynecological symptom, which also has a serious impact on the normal life of patients. Especially after the occurrence, many patients do not know the reasonable treatment and cooking, resulting in a worsening condition.

Causes of pruritus of vulva

1. Chronic local irritation, abnormal secretion stimulation of vulva, vagina and cervicitis.

2. Unclean vulva, tight chemical fiber underwear, sanitary napkin, etc., have poor transparency.

3. Vulvar parasitic diseases, such as lice, octopus, scabies, etc.

4. Various vulvar skin diseases and vulvar tumors.

5. Vulvar local symptoms of systemic diseases, such as diabetes, uremia, vitamin deficiency, etc.

What diseases are associated with pruritus of vulva

1. Fungal vaginitis: vulvae, vaginal itching, vulvae red, bean dregs like leucorrhea, peculiar smell, eczema changes of vulvae dermatitis after itching.

2. Lice disease: lice often lie on the skin surface or the root of pubic hair. lice eggs are gray and the size of needles. Mite bites and their venom and excreta can cause skin itching and desquamation, and then eczema-like changes and folliculitis.

3. Octopus infection: mainly affects young women, and adult women can also be infected. At night, when the anus is loose, octopus swims from the rectum to the vulva to mate and lay eggs, stimulating the skin and mucous membrane of the vulva, causing local itching.

4. Scabies infection: when scabies occurs, the external skin damage is the most serious, and the local itching is also the most obvious.

Why does the vulva itch more after washing

The pH value of the human skin (including the skin of the vulva) is between 5.0 and 5.6. The pH value of the mucosa on the inner side of the vulva labia minora and the mucosa from the urethra mouth to the vagina mouth (the mucosa of the vestibular part of the vagina) is about 5.0. Long-term use of a solution with a pH value of 3.5-4.5 to wash the vulva can not only clean the skin, the oil film and acid film that play a protective role on the mucosal surface, but also the local skin The skin and mucous membrane with low pH value caused by the external washing solution lose its moisturizing and protective effect are prone to skin and mucous membrane sensitivity, and also prone to vulva skin and mucous membrane damage, resulting in "chap", which will cause skin and mucous membrane itching. When skin and mucous membrane itching occurs, wash with external lotion again, because some of the solutions contain menthol, which makes people feel cool and comfortable for a short time after washing. This will stimulate you to like to wash every day. If you don't wash, you will feel uncomfortable. As time goes on, like addiction, the more you wash, the more itchy you become. The author often meets some patients who use external lotion blindly in clinical work, even after stopping external washing solution, Some people will feel itchy and uncomfortable intermittently within two or three months, and always want to use external lotion again to wash comfortably.