Why does it itch down there at night?

I believe that many women will easily notice a phenomenon, that is, as soon as night falls, they feel itchy down there. At this time, you should pay attention to whether it is caused by external stimulation, or some local diseases of the vulva, such as non-gonococcal urethritis, fungal or Trichomonas vaginitis, which may be the cause.

①External stimulation. Sometimes birth control pills can also cause itching. Itching can also be caused by tight underwear, friction between underwear, and irritation from menstrual belts. Vulvar itching can be caused by not paying attention to the hygiene of the vulva, irritants from vaginal secretions, vulvar secretions, sweat, moisture, immersion, chemical fiber underwear, unqualified menstrual belts, rough toilet paper, allergies caused by vulvar and vaginal medication, and frequent washing of the vulva with soap. Vulvar itching is often accompanied by anal itching, which is related to irritation from external hemorrhoids, long-term incontinence, anal fistula, anal fissure, anal excrement and fecal residues.

②Local diseases of the vulva. Local diseases of the vulva include gonorrhea, non-gonococcal urethritis, fungal or Trichomonas vaginitis, scabies, pubic lice, ringworm, atrophic keratotic lichen, leukoplakia, enterobiasis, contact dermatitis, cervicitis, etc. Anal itching in female children is often caused by pinworms and often worsens at night. In addition, anal itching often spreads to the vulva and causes itching. Apocrine prurigo and sweat gland follicle keratosis can also cause severe vulva itching.

③Systemic diseases . Systemic diseases mainly include diabetes, anemia, leukemia, polycythemia, skin diseases, hepatobiliary diseases (such as jaundice), kidney diseases, lymphoma, etc. In addition to general itching, vulvar itching is often accompanied. According to statistics, 3.4% of 500 diabetic patients had localized itching, mainly vulvar itching.

④Mental factors. If you are worried, depressed, nervous, or irritable, you will often feel itchy vulva, and the more you scratch, the more itchy it becomes.

⑤Dietary factors. Lack of iron, riboflavin, vitamin A, vitamin E, fat, etc. in food can cause dryness, flaking and itching of the vulvar skin.

⑥ Idiopathic vulvar pruritus: The cause is unknown and is related to emotional disturbance or certain minor stimuli.