The darkening of the leukorrhea is caused by several different conditions: 1, gynecological inflammation, if a woman suffers from cervical erosion or trichomonas vaginitis, etc., all kinds of diseases will trigger the problem of darkening of the leukorrhea, which is the main symptom of endometrial hemorrhage or vaginal bleeding. 2, chronic cervicitis, endometritis and other diseases can also lead to the leukorrhea is black, mainly due to cervical lesions and lead to the 3, other Diseases or tumors can lead to changes in various organs of the body, and there will be complications that will lead to black leukorrhea and other problems, which will directly affect women’s health. It is recommended to go to the hospital for specific examination in time to avoid the impact on the body after the appearance of such a situation.