Leukorrhea with blood is not normal. It may be caused by ovulation bleeding, cervical disease, endometrial polyp, intrauterine device ring and so on. 1. Ovulation bleeding: the hormone level in the body is disturbed during ovulation, estrogen level decreases, luteinization insufficiency, progesterone level decreases and so on, leading to endometrial detachment, causing a small amount of bleeding can appear when the leukorrhea with blood, repeated occurrence of ovulation bleeding requires drug treatment. 2. Cervical diseases: cervicitis, cervical polyps and other cervical mucous membrane congestion, edema, degeneration, necrosis can lead to bleeding, and when bleeding is small, leukorrhea with blood; cervical cancer, cancerous tissue necrosis, can cause bleeding, and when bleeding is small, leukorrhea with blood. 3. Endometrial polyp: endometrial polyp, polyp tissue consists of glands, mesenchymal stroma and blood vessels, necrosis of polyp can cause bleeding, resulting in leukorrhea with blood. 4. Intrauterine device ring: the intrauterine device ring is in contact with the endometrium, the endometrium is compressed, necrosis, ulceration and other lesions, endometrial hemorrhage leads to leukorrhea with blood. Therefore, patients with blood in the leukorrhea in the clinic need to consult the doctor in time, identify the cause under the guidance of the doctor, and give treatment.