Vulvar lymph node enlargement may be caused by vulvar local inflammation, malignant tumors and other diseases, which need to be analyzed specifically. 1. Inflammation: lymph node is the body’s immune protection organ, female genital area exists more bacteria, if women’s immune system decline, it will lead to the emergence of inflammation around the vulva, thus causing vulvar lymph node swelling, can be treated with antibiotics for anti-inflammatory. 2. Malignant tumors: some malignant tumors will be transferred to the lymph nodes of vulva through lymphatic metastasis, for example, vulvar cancer, cervical cancer, breast cancer, lymphoma and so on will lead to enlarged vulvar lymph nodes after metastasis. The possible causes of enlarged vulvar lymph nodes include inflammation, tumor, etc. It is recommended to go to the hospital for timely examination when symptoms appear, to find out the cause of the disease and treat the symptoms.