The vagina is a tubular shaped organ in the female body that connects the uterus to the external genitals. The functions of the vagina include childbirth, serving as an outlet for the flow of blood from the uterus during menstruation and sexual intercourse. The mucous membrane of the vagina can become irritated due to sensitivities and infections. This can result in persistent itching. To determine the cause of vaginal itching, a physician will examine the vagina and vulva and may take cultures. Treatment depends on the causes of vaginal itching.
Vaginal Infections
Several vaginal infections may cause vaginal irritation and itching. Examples of these infections include yeast infection, bacterial vaginosis and trichomoniasis. Vaginal infections may cause a discharge that accompanies the itching. Yeast infections occur due to an imbalance in natural bacteria and yeast in the vagina. Conditions that may cause a disruption in these microorganisms include taking antibiotics, uncontrolled diabetes, pregnancy and a weakened immune system, according to MayoClinic.com. Bacterial vaginosis occurs due to too much bacteria in the vagina and trichomoniasis occurs due to a parasitic infection that passes during sexual intercourse. Treatment for these conditions includes using medications such as antifungals or antibiotics to restore the correct balance of microorganisms in the vagina.
Tissue Changes
Several conditions may cause the vaginal lining to experience dryness. The dryness in the area can cause itching. One main cause of vaginal dryness is hormonal changes during menopause. Menopause occurs when a woman no longer produces eggs each month for fertilization. Sex hormones, such as estrogen, decrease during menopause. Sometimes skin disorders such as lichen sclerosis or psoriasis may cause itching due to changes they cause in the vaginal lining, according to the Merck Manuals Online Medical Library. Estrogen creams can help ease the itching associated with decreased hormone levels.
Irritation and Stress
Chemical substances and stress may increase the likelihood of developing vaginal itching. Increased stress levels can make the body more likely to develop infections. Chemicals in products such as scented personal hygiene products, laundry detergents and medications can irritate the lining of the vagina and cause itching. The vaginal itching caused by irritants is usually temporary and will stop after discontinuing the product.
