Embryonic arrest refers to the cessation of development or death of the embryo in the uterine cavity during early pregnancy. In recent years, the incidence of embryonic arrest has been increasing year by year and has attracted the attention of scholars at home and abroad. Clinical symptoms are mainly menopause, vaginal bleeding and abdominal pain. The etiology is related to chromosomal abnormalities, endocrine factors, immune factors, infectious factors, anatomical structure abnormalities, environmental pollution (such as heavy metal pollution), occupational stress and so on. Normal leukorrhea is white, fine paste or egg white, the amount varies, generally odorless, early pregnancy due to the influence of hormone levels may appear leukorrhea increase, yellow phenomenon. Yellowish leukorrhea may also be thick leukorrhea, yellow or yellow-green color, such as thick samples, with a foul smell, mostly caused by infections, most commonly seen in trichomonas vaginitis, followed by chronic cervicitis. Early in pregnancy, amniotic fluid is colorless and translucent or yellowish, later with the fetal liver, lungs and other organs and tissues mature, fetal fat, shed epithelial cells and other components of the amniotic fluid gradually slightly turbid into milky white. If the amniotic fluid is yellowish green or dark green suggests fetal distress (amniotic fluid mixed with meconium); brownish red or brown suggests fetal death; golden yellow suggests amniotic fluid bilirubin is too high (mother and child blood type incompatibility), inflammation in the amniotic cavity (Staphylococcus aureus infection); sticky yellow suggests overdue pregnancy, placental hypoplasia; pus or with foul smell suggests intrauterine infection. Therefore, the yellow water after pregnancy is not necessarily the embryo stops developing, you have to go to the hospital for examination to determine whether the fetus stops. It is recommended that pregnant women usually pay more attention to rest, drink more water, strengthen nutrition, improve the body’s immunity, pay attention to vulvar hygiene, wash underwear, high temperature disinfection.