Endometrial blood-colored spots evenly distributed suggest endometrial inflammation, post-abortion pregnancy residue, endometrial polyps. 1. endometritis: endometrial inflammation, ultrasound in the uterine cavity point-like echoes or low-density shadow in addition to fluid in the uterine cavity or endometrial thickening. Clinical manifestations of lower abdominal pain, severe cases will have high fever and chills and other systemic symptoms, need to be hospitalized anti-inflammatory or surgical treatment. 2. Post-abortion pregnancy residue: if the abortion scraping is not complete, there is a connection between the pregnancy and the mother’s uterus, and the pregnancy continues to bleed, ultrasound will find the endometrium blood-colored spots. Clinical manifestations of abdominal pain accompanied by vaginal bleeding, at this time should be cleared in time to avoid intrauterine infection. 3. Endometrial polyps: endometrial gland and mesenchymal hyperplasia produce polyps due to a variety of reasons, polyp size is not fixed, the initial volume of small ultrasound will suggest that the endometrial thickening with the distribution of blood-colored light spots uniform. Clinical manifestations are increased menstrual flow, abnormal uterine bleeding, polyps larger need hysteroscopic resection treatment. It is recommended that women undergo regular gynecological checkups, have a detailed examination when abnormalities are detected, and consult a professional doctor for treatment as soon as possible.