Women with blisters on the vulva may be caused by genital herpes, vulvitis, folliculitis, etc. The exact cause needs to be examined in the hospital to determine. 1. Genital herpes: genital herpes is usually caused by infection with HSV (herpes simplex virus), and is more common in women in the uterus, labia majora and minora, clitoris and other parts of the body, and the lesions are mostly blisters, accompanied by vesicles, itching, pain and other symptoms. 2. Vulvovaginitis: Vulvovaginitis is usually caused by obesity, external stimulation, and frequent use of broad-spectrum antibiotics, etc. Due to the stimulation of inflammation, blisters will appear on the skin of the vulva of the patient, and tofu dregs or curd-like secretion will appear in the vagina, accompanied by symptoms of vulvar itchiness, burning sensation, swelling, and pain. 3. Folliculitis: folliculitis is generally caused by skin trauma, excessive sweating, body immunity decline, etc., the lesions are mostly red pimples at the beginning, with the development of the disease, the pimples will develop into pustules, and there will be pain, tenderness, itching, etc., when the condition is serious, if the condition is more serious, the patient will also have a headache, chills, fever, chills and other symptoms. If a woman has blisters on her vulva, she should go to the hospital in time to seek medical attention and be treated under the guidance of a doctor after diagnosis.