During pregnancy, women will pay attention to the activity of the fetus. The instability of the fetus can make women very nervous. Generally, during the first three months of pregnancy, the fetus is unstable, but some people may experience fetal arrest after 29 weeks, which is very sad. So, why did the 29th week fetus stop?

The occurrence of fetal arrest at 29 weeks may be related to the following situations:
1. Luteal insufficiency: The corpus luteum of the ovary secretes estrogen and progesterone to maintain fertility. The placenta replaces the function of the corpus luteum after 10 weeks of pregnancy, and the corpus luteum continues to atrophy until 3-4 months of pregnancy. Progesterone is the hormone that maintains pregnancy, and luteal insufficiency can easily lead to fetal arrest.
2. Maternal diseases: Adverse factors such as reproductive organ diseases and severe uterine malformations that affect fetal development can also lead to fetal arrest. Some cases of miscarriage are caused by acute or chronic diseases such as influenza, hepatitis, and severe anemia. At the 6th month, edema is prone to occur, leading to preeclampsia, which can cause fetal hypoxia and suffocation.
3. Premature rupture of membranes: Before delivery, if the membranes rupture, vaginal discharge may occur. After the rupture of the fetal membrane, the fetus loses the protection of the amniotic membrane, increases the chance of infection, and the umbilical cord is prone to detachment, which can cause fetal death.
4. Environmental factors: Exposure to various detergents during pregnancy can lead to the absorption of chemical components by the skin and accumulation in the body, which can trigger fetal arrest. Embryos are highly sensitive to radiation, toxic chemicals, and viral infections, and should be avoided from contact. Nicotine and other harmful substances can cause problems such as poor sperm development, which can increase the incidence of miscarriage.