The main symptoms of mycobacterial vulvovaginitis are as follows: first, the patient will have a large amount of thick leukorrhea in the form of tofu dregs or curd, leukorrhea is easy to stick to the labia majora and minora, and leukorrhea has a slight fishy smell, mostly without odor. Second, the patient’s vulva may appear obvious redness, swelling, itching is more serious, and in many cases there are obvious scratches on the vulva. Because women’s vagina and urethra are adjacent to each other, so mycobacterial vulvovaginal inflammation is easy to trigger inflammation of the urethral opening and lead to frequent urination, urinary urgency, urinary pain. Especially after urinating urine stimulation, the patient’s external causes lead to patients with irritating pain. Third, the recurrence of external cause of mycobacterial inflammation will make the patient’s external cause of local skin lesions and lead to the patient’s local skin thickening or color changes, it is necessary to carry out external cause of local biopsy to determine whether there is no neoplastic lesions or other vulvar skin lesions.