Pain and itchiness in the lower part of a woman’s body are clinically common due to the following reasons: 1. Inflammatory skin diseases of the vulva, such as vulvar eczema and vulvar dystrophy, may cause pain and itchiness in the vulva. 2. Inflammatory diseases of the vagina, such as pseudomonal vaginosis caused by Candida albicans infection, trichomoniasis caused by trichomonas infection, mycoplasma caused by mycoplasma infection, chlamydial vaginitis and bacterial vaginosis, may cause pain and itchiness in the vulva. Vaginitis, chlamydial vaginitis and bacterial vaginosis can all cause painful itching in the vulva. Therefore, it is very important to find out the cause. It is recommended that in addition to gynecological examination to understand the local condition of the vulva, it is also recommended to have a routine high magnification laboratory test of the leucorrhoea, which is a clinical test to understand the pathogenic bacteria that are infected, and then to give the appropriate treatment according to the results. It is also recommended that women should keep their vulva clean and change their underwear regularly in their daily life.