I want to ask what symptoms fetal arrest will have

Symptoms of fetal arrest include irregular vaginal bleeding, abdominal pain, lower abdominal distension, disappearance of early pregnancy, loss of appetite, strong defecation feeling, etc. Pregnant women can also pass B-ultrasound, blood HCG examination, when no fetal bud, fetal heart, and blood β-hcG less than 2000IU/L, can be diagnosed as fetal arrest.