What is the meaning of a miscarriage?

Patient's question:

No

Doctor's answer:

So-called miscarriage refers to the death of the fetus before 24 weeks of pregnancy. However, according to the standards of the World Health Organization, miscarriage refers to the death of a fetus weighing less than 500 grams. Medical records show that about 75% of miscarriages occur before 16 weeks of pregnancy, with most of them happening before 8 weeks.