Can spontaneous abortion occur with menstruation?

Spontaneous miscarriage and menstruation usually do not occur together.

Spontaneous abortion usually refers to the termination of pregnancy before 28 weeks of pregnancy due to natural factors such as embryonic factors, maternal factors, paternal factors, environmental factors, etc. before the embryo or fetus has the ability to survive. It is a common complication in early pregnancy, mainly manifested as vaginal bleeding and abdominal pain after menopause, which may be accompanied by low back pain. In the case of spontaneous abortion, the gestational sac in the body will gradually be discharged from the body, not with the menstruation. After the body fully recovers, menstruation may occur.

Although both spontaneous abortion and menstruation have vaginal bleeding, there is a clear difference between the two. In addition to vaginal bleeding, the blood of spontaneous abortion may contain appendages such as the gestational sac and placenta, and slight uterine contractions may occur during the process, causing abdominal pain. Vaginal bleeding caused by menstruation is just bleeding and some uterine decidua, without appendages such as the gestational sac and placenta.

Vaginal bleeding caused by menstruation is usually regular, generally 21 to 35 days, and an average of 28 to 30 days. Spontaneous abortion is more likely to occur in early pregnancy, that is, before 28 weeks of pregnancy. If you experience abdominal and back pain, a small amount of vaginal bleeding, fever, etc. after menstruation stops, it is recommended to go to the obstetrics and gynecology department of the hospital for diagnosis and cooperate with the doctor to conduct relevant examinations, such as abdominal ultrasound examination, to determine whether the abortion was successful to avoid incomplete abortion.