What Can Cause Recurrent Miscarriages?

Recurrent Miscarriages

Recurrent miscarriages, defined as three or more consecutive pregnancy losses before 20 weeks of gestation, can be caused by various factors. It’s important to note that miscarriages are relatively common, and many occur without a clear cause. However, when recurrent miscarriages occur, healthcare providers may investigate potential underlying factors. Some possible causes include:

  • Chromosomal abnormalities: Genetic issues in either the egg or sperm can lead to chromosomal abnormalities in the embryo, increasing the risk of miscarriage.
  • Uterine abnormalities: Structural problems with the uterus, such as fibroids, polyps, or a septum, can interfere with implantation or proper fetal development.
  • Endocrine disorders: Hormonal imbalances, such as polycystic ovary syndrome (PCOS) or thyroid disorders, can contribute to recurrent miscarriages.
  • Autoimmune disorders: Conditions where the immune system mistakenly targets the developing embryo can lead to recurrent pregnancy loss.
  • Blood clotting disorders: Conditions that affect blood clotting, such as antiphospholipid syndrome, can increase the risk of miscarriage by interfering with blood flow to the uterus.
  • Infections: Certain infections, such as cytomegalovirus (CMV) or toxoplasmosis, can pose a risk to the developing fetus and may lead to recurrent miscarriages.
  • Advanced maternal age: The risk of miscarriage increases with maternal age, especially after the age of 35.
  • Lifestyle factors: Factors such as smoking, excessive alcohol consumption, drug use, and obesity can contribute to recurrent miscarriages.
  • Unexplained causes: In some cases, despite thorough testing, the cause of recurrent miscarriages remains unknown.

If someone is experiencing recurrent miscarriages, it is crucial to consult with a healthcare provider or a reproductive specialist. They can conduct a thorough evaluation, including genetic testing, hormonal assessments, imaging studies, and other relevant tests to identify any potential underlying causes. Treatment options will depend on the specific cause identified, and in some cases, supportive care during pregnancy may be recommended.

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