Bleeding at 24 weeks of pregnancy should first be clarified as to whether the bleeding is vaginal or urethral. Vaginal bleeding may be caused by pre-eclampsia or placenta praevia, or it may be caused by cervical disease, and it is usually recommended to go to the hospital for examination and treatment. Vaginal bleeding 1. Pre-eclampsia: It is mainly caused by the embryo itself, maternal factors, and paternal factors. Of course, it is not excluded that it is related to exposure to toxic and harmful substances during pregnancy, smoking and alcohol abuse. In this case, the pregnant woman will have intermittent uterine contractions with abnormal bleeding symptoms. It is necessary to do ultrasound examination in time to determine whether there is a value of fetal preservation, and to observe the amount of vaginal bleeding. If the bleeding continues to increase, the pregnancy should be terminated in time; 2. Placenta praevia: it is the main cause of bleeding in the middle and late stages of pregnancy, and its clinical manifestation is painless vaginal bleeding, which is not accompanied by abdominal pain. At this time, it is recommended to do ultrasonography to understand the position of the placenta to exclude placenta praevia. Pregnant women need to rest in bed, and if necessary, they may need to be treated with drugs to stop contractions and bleeding. 3. Cervical diseases: cervical polyps, cervical inflammation and even cervical cancer (precancerous lesions) can also cause vaginal bleeding, and further examination is needed to identify them. For bleeding in the cervical area, some may require surgical treatment to relieve it. 4. Gynecological inflammation: Vaginitis may also cause bleeding, which requires vaginal discharge examination at the hospital to clarify the cause. Second, urinary tract bleeding 1, urinary tract infection: for example, accompanied by urinary urgency and pain, caused by urine bleeding, may indicate an acute urinary tract infection, can be further examined in accordance with the urinary tract infection; 2, other: for example, urinary stones, urinary tract tumors, etc., may also lead to blood in the urine, need to go to the hospital in a timely manner to clarify the cause, for treatment. Pregnant women should have regular maternity checkups during pregnancy, find out pregnancy complications to be treated in time, pregnancy should not be strenuous exercise, engage in high-intensity work, prohibit intercourse when bleeding occurs, and try to go to less crowded occasions to avoid inadvertent impact on the abdomen. During the period of fetal preservation, it is important to maintain a calm mood, use fetal preservation drugs and rest in bed if necessary.