I had my first child by cesarean section 8 years ago and got my period back 1 month after giving birth. Now, it's been more than 3 months since I had my second child by cesarean section and I still haven't had my period back. Both children are exclusively breastfed. Do I have any problems? How long does it take for the first-period return after a cesarean section?

Black menstrual blood is a phenomenon considered abnormal in women's menstrual cycle. This is a warning sign that women's bodies are experiencing some problems that affect their health. According to Dr. Tran Thi Mai Huong, obstetrician and gynecologist at Vinmec Hai Phong International General Hospital: "Women need to learn more about the phenomenon of black menstrual blood and find a way to overcome this condition, helping the menstrual cycle return to normal."

Menstrual cycles after medical abortion can change, leading to light and irregular bleeding. This is a normal phenomenon, as the hormonal system requires time to stabilize. However, if you have any concerns about your reproductive health, consult a doctor.

There are numerous causes for menstrual bleeding lasting over 10 days, which may indicate ovarian cysts or other abnormalities involving the uterus and hormonal imbalances.

Typically, the menstrual fluid volume in a normal-amenorrheic woman ranges from 50-80 ml. However, many women experience hypermenorrhea following childbirth, with menstrual blood loss exceeding 80 ml. This condition is known as menorrhagia.