If the leukorrhea is purulent and has blood, it is often related to the following factors: 1. Most often, it is caused by local inflammation of the cervix, which can lead to strong secretion of the glandular ducts, so there will be a large amount of purulent leukorrhea, and because of the inflammation, the local capillaries are relatively brittle, so there will be bleeding or there are cervical polyps, which can also cause bleeding. 2. The discharge may be purulent and bloody due to endometrial cancer, and may have a foul odor. 3. It may be caused by local cancer of the cervix, and should be examined, such as routine leucorrhea, cervical cancer screening and ultrasound examination to understand the condition of the endometrium, and treatment should be given according to the specific examination results.