What May Cause Miscarriage?


Miscarriage, also known as spontaneous abortion, is a relatively common complication of pregnancy. It refers to the loss of a pregnancy before the fetus reaches viability, typically before 20 weeks of gestation. There are several potential causes of miscarriage, including:

  • Chromosomal Abnormalities: Most miscarriages occur due to chromosomal abnormalities in the fetus. These abnormalities may arise from errors in cell division during the formation of sperm or egg cells or during early embryonic development.
  • Maternal Age: Advanced maternal age, particularly over the age of 35, is associated with an increased risk of miscarriage. This is partly due to an increased likelihood of chromosomal abnormalities in eggs as women age.
  • Uterine Abnormalities: Structural abnormalities of the uterus, such as uterine fibroids, polyps, or septum, can increase the risk of miscarriage by interfering with implantation or affecting blood flow to the developing fetus.
  • Hormonal Imbalances: Hormonal imbalances, including insufficient levels of progesterone, which is necessary to maintain the uterine lining during early pregnancy, can contribute to miscarriage.
  • Maternal Health Conditions: Certain maternal health conditions, such as diabetes, thyroid disorders, autoimmune diseases, and infections, can increase the risk of miscarriage if not properly managed.
  • Lifestyle Factors: Factors such as smoking, excessive alcohol consumption, illicit drug use, and obesity have been associated with an increased risk of miscarriage.
  • Infections: Infections of the reproductive tract, such as sexually transmitted infections (STIs) or bacterial vaginosis, can increase the risk of miscarriage, particularly during the first trimester.
  • Blood Clotting Disorders: Inherited or acquired blood clotting disorders, such as antiphospholipid syndrome or thrombophilias, can interfere with proper placental development and increase the risk of miscarriage.
  • Environmental Factors: Exposure to certain environmental toxins, pollutants, or chemicals, such as lead, radiation, or certain medications, may increase the risk of miscarriage.

It’s important to note that in many cases of miscarriage, the exact cause may not be identified. Miscarriage can be a devastating experience for individuals and couples, and seeking support from healthcare providers, counselors, or support groups can be beneficial in coping with the emotional aspects of pregnancy loss.

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