Third trimester embryonic arrest is considered to be related to embryonic factors, maternal factors, paternal factors and environmental factors.
1. Embryonic factors: chromosomal abnormality of the embryo is usually the main cause of embryonic arrest, and it is considered to be related to the abnormality of chromosome 13, 6, 18, 21 or 22.
2. Maternal factors: Mothers may suffer from infections, immunologic factors, genital malformations, endocrine abnormalities, and poor dietary habits, etc., which may increase the risk of embryonic arrest.
3. Paternal factors: Decreased sperm quality in men may also have a certain correlation with the occurrence of embryonic sterilizations.
4. Environmental factors: exposure to X-rays, atmospheric pollution, chemicals, room decoration pollution, etc. in the early stages of pregnancy may also cause the fetus to stop developing in the third trimester.
After the third trimester fetal arrest, once diagnosed, should be timely treatment, choose the appropriate method to terminate the pregnancy.