Fetal arrest is when an embryo stops developing during pregnancy and is no longer viable. It is a frustrating and heart-wrenching experience that can be a huge shock to the couple. So, when fetal arrest occurs, is there any hope of saving the fetus? This article will answer your question from a medical perspective. First of all, understanding the cause of fetal arrest is very important for subsequent treatment and prevention. Common causes of fetal arrest include chromosomal abnormalities, maternal factors, uterine structural abnormalities, immune factors, etc. For fetal arrest caused by chromosomal abnormalities, since it is a problem of the embryo itself, the fetus cannot be saved through treatment. However, there are certain medical treatments for fetal arrest caused by other causes. For fetal arrest caused by uterine structural abnormalities, surgical correction can be performed to increase the chance of successful pregnancy. For example, structural problems such as endometrial polyps and uterine fibroids can be improved through surgical removal or correction. In addition, improvement of the uterine environment is also an important step, for example, insufficient endometrial thickness can be increased through hormonal therapy. Immunotherapy is an effective method for fetal arrest caused by immune factors. Immunotherapy involves modulating the immune system with immunosuppressants or immunomodulators to prevent the embryo from being attacked by the maternal immune system. For example, in fetal arrest caused by antiphospholipid antibody syndrome, the use of drugs such as low molecular weight heparin can reduce the risk of thrombosis and fetal death. In addition, psychological support is also very important. Prenatal abortion is a huge psychological blow to both couples, so it is necessary to seek professional psychological counseling and support. Psychological counseling can help couples relieve stress, adjust their emotions, and increase their confidence in future pregnancies. However, it needs to be clear that not all fetal arrests can be treated to save the fetus. Once fetal arrest occurs, although we can do our best to treat and prevent it, the results are not always what we hope for. Sometimes, fetal arrest may be unavoidable, which is a very painful reality. In short, when fetal arrest occurs, whether the fetus can be saved depends on the specific cause. For fetal arrest caused by chromosomal abnormalities, there is no way to save the fetus through treatment. However, for other causes of fetal arrest, we can increase the chance of a successful pregnancy through surgical correction, immunotherapy, and psychological support. When faced with fetal arrest, couples should actively seek professional medical and psychological support to better deal with this difficulty.