Vulvar skin fissures are a clinical symptom of gynecologic diseases and are not an independent disease. The main gynecological diseases that may cause fissures in the vulva include: i. Sclerosing moss of the vulva, which is the most important cause of skin fissures in the vulva. The cause of this disease is unclear and may be related to genetic factors, or abnormal autoimmune function, local neurovascular lesions, etc. There are obvious symptoms such as itching, burning and pain in the vulva area. Second, the severe lack of estrogen level in older women leads to atrophy of the skin mucosa and loss of secretion function of the glands in the vulva area, which also leads to fissures in the vulva area. Third, some women, due to lack of attention to personal hygiene, local stimulation by urine and faeces for a long time, or friction stimulation, etc., resulting in thinning, cracking and erosion of the skin.