Vaginal skin and surrounding tissues can be quite sensitive to external and internal agents.Itching is often a symptom of various irritants, menopause and even infection.Treatment of the itching will depend on the cause. Some require medication or a change in hygiene practices.Vaginal odor, bleeding, any pain or fever should be checked out by a medical professional.ChemicalsSome chemicals that come in contact with the vagina can lead to itching and even a rash.The National Institutes of Health suggests common chemical irritants include detergents, fabric softeners, feminine sprays, ointments, creams, douches and contraceptive substances.MenopauseMenopause results in a decrease in estrogen levels in a woman's body. This can cause vaginal dryness.Vaginal secretions are helpful in protecting the tissues from irritation.Without this natural lubrication, a woman may experience dryness, itching and even pain in the vagina and surrounding tissues.YeastYeast exists naturally on and in the body. This is also true of the vagina. When yeast becomes overgrown, the result is a yeast infection and is a common ailment among women.Symptoms of a yeast infection include itching, significant vaginal secretions and thickened discharge resembling cottage cheese. Over-the-counter anti-fungal creams or suppositories are effective in treating yeast.VaginitisVaginitis is a term used to describe any vaginal inflammation, itching, discharge or odor. Nearly anything can cause this female ailment, such as sexually transmitted infections.The University of Maryland Medical Center points out that vaginitis is common in girls who are approaching puberty.StressStress, as indicated by the University of Maryland Medical Center, can increase vagina itching. This itching can make a woman more susceptible to infection.