High uterine artery blood flow does not usually lead to biochemical pregnancy, biochemical pregnancy is usually induced by the poor quality of fertilized eggs. 1. The cause of biochemical pregnancy: biochemical pregnancy belongs to a kind of phenomenon of the organism’s superiority and inferiority, which is often caused by the poor development of the embryo, such as chromosomal abnormalities; and maternal factors, such as pregnant women suffering from antiphospholipid syndrome and so on. 2. The danger of high uterine arteries: it will lead to the growth and development of the fetus to be adversely affected, causing fetal development retardation, or even cause fetal arrest, generally related to uterine arteriosclerosis or uterine fibroids and other disease factors. For women, for the sake of eugenics, it is crucial to undergo a pre-pregnancy checkup, so that once conditions unfavorable to the growth and development of the fetus are detected, they can be corrected at an early stage. If biochemical pregnancy is suspected in the clinic, please consult the hospital in time to avoid adverse consequences.