What is the cause of black blood clots in early pregnancy bleeding

Vaginal bleeding with black blood clots in early pregnancy is mainly caused by preterm miscarriage. Pre-eclampsia can be caused by a lack of progesterone or overexertion, a history of sexual intercourse, or the relatively low position of the fertilized egg. In this clinical situation, it is advisable to have an ultrasound examination. It is important to know if the size of the gestational sac matches the number of days of menopause and to know if the hormone levels are normal by laboratory tests such as progesterone and blood HCG tests. If the development of the embryo is normal, active bed rest is recommended and medication is given to calm the fetus. After the medication is administered, it is important to review the progesterone and blood HCG regularly to see if they are normal.