Vaginal discharge of black silk-like material may be related to gynecological inflammation, vaginal foreign body and other reasons, should be timely attention. 1. Gynecological inflammation: When gynecological inflammation exists in the organism, a small amount of vaginal bleeding may occur due to the stimulation of the organism by inflammation, and the blood forms a black filamentous secretion under the influence of the acidic environment of the vagina and the vagina, for example, cervicitis, pelvic inflammatory disease, and endometritis. 2. Vaginal foreign body: when the body of the vagina there is a foreign body, may also lead to the body of such symptoms, the vaginal foreign body for a long time compression of local tissues lead to part of the tissue ischemia necrosis, necrosis of the tissue may also be manifested as black filamentous material, accompanied by local vaginal pain and discomfort, abnormal secretions, and should be timely medical attention. There may be other reasons for the vaginal discharge of black silky material, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.