It is not necessary to lie flat after IVF, but you need to pay attention to more rest, avoid too long standing and exertion, etc., to avoid affecting the embryo implantation, causing implantation failure. In the first two days after the transfer, you need to take more bed rest, reduce the exercise, and can moderately reduce the activities to avoid the embryo out of the uterine cavity. Because just transplanted about 2-3 days, the embryonic tissue in the uterine cavity is in a free state, excessive activities, easy to cause outflow, it is best to transplant a week later, normal life and work is better, and also can not be too tired. A few days before the transplantation, more bed rest can promote blood flow back to the uterine cavity. It is conducive to the development of the embryo, but need moderate activity, moderate activity can promote blood circulation to speed up, to avoid causing ischemia in the uterine cavity. Diet after the implantation also needs to increase nutrition, eat more easily digestible, protein-rich food. Don’t eat spicy and stimulating foods, as well as cold and cold foods.