Some pregnant women, once they are pregnant, will find various reasons to start bed rest to keep the fetus, and even go through various relationships to get the doctor to issue a leave of absence for “bed rest”, can “bed rest” really ensure that nothing can go wrong? There are many reasons for miscarriage, such as vaginal bleeding, especially bright red blood or lower abdominal pain; late miscarriage or premature delivery due to anatomical abnormalities of the uterus (e.g. cervical insufficiency, uterine malformation, etc.); cervical cerclage for various reasons; bleeding from placenta praevia; hematoma under the chorionic villi or fetal membranes found by ultrasound although the pregnant woman does not have vaginal bleeding. Pregnant women should avoid activities or reduce activities. If there is an aura of miscarriage, she should actively cooperate with the doctor for symptomatic treatment, rather than simply resting in bed. The doctor will decide whether further treatment is needed and whether fetal preservation is required according to different situations. At present, the harmony of doctor-patient relationship and the environment of medical services in China are not ideal. In clinical practice, we often encounter pregnant women who are surrounded by their families, who have been elevated to the status of “national treasure” of their families and are in the center of attention, and even believe that “talking will affect the development of the fetus”, and strongly demand that doctors must prescribe They even think that “talking will affect the development of the fetus” and strongly demand that the doctor must issue a “bed rest” leave. In addition, when obstetricians encounter cases of pre-eclampsia, preterm labor, prenatal hemorrhage, and hypertensive disorders during pregnancy, they will be the first to issue a medical order for “bed rest” and patiently tell pregnant women to go home and rest in bed, fully reflecting the “treating patients as relatives” style. This is a good example of “treating the patient as a family member” and is more about risk avoidance. The doctor’s warm advice, warm and considerate instructions, for the pregnant woman is like meeting a “family”, to the doctor is a thousand thanks, they are satisfied. Professor Lorenz of the University of Michigan Hospital compiled four of the best recent papers on bed rest during pregnancy, with surprising conclusions suggesting that the prescription of “bed rest during pregnancy” lacks empirical evidence and was found to be a prescription that violates medical ethics, that bed rest is not completely cost-free, and that therapeutic bed rest is unethical. Therapeutic bed rest is unethical and should be limited to informed consent for investigational trials. National medical studies have found that if the embryo is well developed, strenuous activity does not result in miscarriage. If the embryo is poorly developed, it will eventually stop developing and miscarry even if it lies motionless in bed all day. During pregnancy, exercise has many benefits for both the fetus and the pregnant woman, and proper daily activities will not lead to fetal miscarriage, while prolonged bed rest will not only increase the chances of preserving the fetus, but may lead to a series of hazards for pregnant women, as follows: First, it is easy to form blood clots. Long-term bed rest makes the whole body blood circulation of pregnant women become slow, the body resistance decreases, blood is easy to coagulate in the microcirculation, forming thrombosis, the most common is the lower limbs, pelvic deep vein thrombosis, serious cases even cause postpartum pulmonary embolism, can lead to maternal death. Especially for pregnant women who have habitual abortion due to pre-thrombotic state, long-term bed rest increases the possibility of placental microcirculation thrombosis, which is not good for fetal preservation. Secondly, it can affect the digestive function. Due to the pregnancy reaction, the inhibition of placental hormones on the digestive function and the pressure of the enlarged uterus, pregnant women have symptoms such as nausea, vomiting, loss of appetite, decreased digestive power and constipation. These conditions can be made worse by prolonged bed rest, especially for some pregnant women who are not used to defecate in bed, and the frequency of defecation is significantly reduced after bed rest, which aggravates constipation. Once again, it can cause mental effects. Long-term bed rest will damage the memory of pregnant women, so that the ability to express language, the ability to exercise will also be increasingly reduced, concentration is difficult. As the saying goes, “one pregnancy is silly for three years”, so pregnant women should be more socially exposed. In addition, other aspects of health can be compromised. Prolonged bed rest can cause muscle stiffness, numbness, calcium deficiency and osteoporosis. Even due to the lack of exercise, pregnant women may develop disuse atrophy of lower limb muscles, resulting in postpartum lower limb weakness, walking difficulties, etc. In summary: appropriate daily activities will not lead to miscarriage, for pregnant women who have a history of unexpected miscarriage, must cooperate with the doctor to find out the real cause of miscarriage, rather than blindly lying in bed to protect the fetus, otherwise the root cause of the problem is not solved, even long-term bed rest will not help, and long-term bed rest during pregnancy is not good for the body.