Women with discomfort on the left side of the vagina are considered to be related to pathologic factors such as genital herpes, vulvovaginitis, and vestibular gland cysts or abscesses. 1. Genital herpes: this disease is a sexually transmitted disease caused by herpes simplex virus infection, herpes simplex virus invades the organism and replicates in the skin, resulting in localized inflammation or necrosis, and the patient mostly manifests localized blisters, pain, itching and other discomforts. 2. vulvovaginitis: due to the female vulva has urethral opening, anus, local easy to combine with E. coli and other pathogens infection, if the infection of local hair follicles will lead to vulvar folliculitis, the patient will have localized redness and swelling, pain, touch small pimples and other discomforts. 3. Vestibular gland cyst or abscess: If the duct of the vestibular gland is blocked, the local glandular fluid can not be discharged smoothly and there will be local retention cysts, that is, vestibular gland cysts, at this time, the patient will have a local foreign body sensation and other discomforts. If the cyst is combined with a bacterial infection, it will lead to a vestibular gland abscess, and the patient will have localized pain, affecting walking and other discomforts. For women who feel uncomfortable on the left side of the vagina, it is recommended to go to the gynecology department of a regular hospital for consultation and active treatment under the guidance of a doctor after clarifying the cause of the disease.