What exactly does threatened abortion refer to?

Threatened miscarriage specifically refers to a series of abnormal symptoms that occur in early pregnancy (especially before 28 weeks of gestation), while the cervix remains closed and the fetal membranes are intact. These symptoms mainly include irregular vaginal bleeding, abdominal pain, or back pain.

These symptoms may indicate that the fetus could be at risk of miscarriage. Threatened miscarriage mostly occurs during early pregnancy and has complex causes, which may be related to embryonic chromosomal abnormalities, female endocrine disorders, uterine malformations, maternal physical weakness, fatigue, trauma, and other factors.

Once these symptoms appear, the pregnant woman should seek immediate medical attention for further evaluation and management by a physician to determine whether fetal preservation is necessary.