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Causes of Miscarriage: Understanding Why Pregnancy Loss Happens

Introduction

Miscarriage means losing a pregnancy before 20 weeks. It is more common than many people think. In fact, about 10 to 20 out of every 100 known pregnancies end in miscarriage. Many wonder about the causes of miscarriage and why pregnancy loss happens. This blog will explain the main reasons for early pregnancy loss. Understanding these causes can help you feel more informed and less alone.

Common Causes of Miscarriage

There are several reasons why miscarriages happen. Sometimes, the exact cause is not known. However, doctors have found some common causes of miscarriage:

  • Chromosome Problems: Most miscarriages in the first trimester happen because the baby’s genes are not developing normally. This is often by chance and not caused by anything the parents did.
  • Problems with the Uterus or Cervix: Sometimes, the shape of the uterus or a weak cervix can lead to pregnancy loss. For example, scar tissue or growths inside the uterus may make it hard for the baby to grow.
  • Infections: Certain infections, such as rubella or listeria, can increase the risk of miscarriage. These infections may harm the baby or the pregnancy.
  • Hormone Issues: Low levels of certain hormones, like progesterone, can make it hard for the pregnancy to continue.
  • Chronic Health Conditions: Conditions like diabetes or thyroid disease can raise the risk of miscarriage if not well controlled.
  • Immune System Problems: Rarely, the body’s immune system may attack the pregnancy by mistake.

    • Although these are the most common causes, sometimes no clear reason is found. Even so, most women who have a miscarriage go on to have healthy pregnancies later.

    Risk Factors

    Some things can make miscarriage more likely. While you cannot control all risk factors for miscarriage, knowing them can help you talk with your doctor. Here are some key risk factors:

  • Age: Women over 35 have a higher chance of miscarriage than younger women.
  • Previous Miscarriages: Having had one or more miscarriages in the past can increase your risk.
  • Chronic Conditions: Health problems like high blood pressure, diabetes, or thyroid issues can raise the risk.
  • Smoking, Alcohol, or Drugs: Using tobacco, alcohol, or illegal drugs can make miscarriage more likely.
  • Obesity or Being Underweight: Both can affect pregnancy health.
  • Severe Infections: Some infections can increase the risk of early pregnancy loss.

    • However, many women with these risk factors still have healthy pregnancies. It is important to talk with your doctor about your own risks.

    When to Seek Medical Advice

    If you are pregnant and notice any of the following, you should contact your doctor right away:

  • Heavy bleeding or passing clots
  • Severe belly pain or cramping
  • Fever or chills
  • Feeling faint or dizzy

    • Even if your symptoms seem mild, it is always better to check with a healthcare professional. Early care can help protect your health and your pregnancy.

    Miscarriage can be a difficult experience. However, understanding the causes of miscarriage may help you feel more prepared. If you have concerns or questions, consult a healthcare professional for personalized advice.