There are several reasons why there is more and more bright red blood after removing the IUD: 1. Considering that it is caused by the damage to the endometrium when removing the IUD, the process of removing the IUD will cause some damage to the endometrium, such as a thicker endometrium leading to increased bleeding, and the color of the blood is bright red; 2. The removal of the IUD is also prone to cause some stimulation of the cervix, which can also lead to bleeding; 3. After removing the IUD, the time of coitus is too early, and the lack of anti-inflammatory drugs can easily cause Intrauterine infection, intrauterine infection will cause increased bleeding, and accompanied by abdominal pain, abnormal leukorrhea and other symptoms; 4, and the location of the IUD and the length of time to remove the IUD also has a relationship with the position of the IUD and the length of time to remove the IUD, if the position of the IUD is not good, the removal of the IUD is too long, will lead to increased bleeding, you need to go to the hospital in a timely manner for blood tests, ultrasound, gynecological fingerprinting, and according to the specific circumstances of the selection of the appropriate treatment method.