Different Kinds Of Miscarriage And Risk Factors

Any to-be-mother who is desirous of having a child and who has conceived a baby is very mindful of the fact that a miscarriage or a spontaneous abortion is one of the most common complications of early pregnancy and that a miscarriage is an extremely traumatic and difficult occurrence to deal with.

Studies have shown that as many as 25% of pregnancies are miscarried by the sixth week of gestation. As many as 8% of pregnancies end in a miscarriage after the 6th week.pregnancy loss

Miscarriages can be of several different kinds:

  • a complete miscarriage is when the entire contents of the uterus are expelled
  • An incomplete miscarriage is when only a part of the contents of the uterus are expelled. This would typically require a D&C surgery where the uterus is dilated and scraped to expel any of the remaining pregnancy.
  • A missed miscarriage is when the fetus, for some reason stops growing within the uterus and this is a condition that can usually be detected by the doctor’s investigations rather than the usual bleeding and pain that signals a miscarriage.

Factors that raises miscarriage risk

There are several factors that significantly raise chances of a woman having a miscarriage and they are:

  • Advanced age of parents. This refers not only to the age of the mother but also the father. The higher the age of the parents the higher the risk of a pregnancy ending in a miscarriage
  • Multiple fetus pregnancies have a higher risk of miscarriage
  • A woman having uncontrolled diabetes is at a higher risk of pregnancy. This also refers to gestational diabetes (which the woman may develop for the first time when pregnant) which has to be kept in check.
  • Another condition that may develop during pregnancy is pre-eclampsia or high blood pressure that also increases the risk of miscarriage.
  • Women with Polycystic Ovarian Syndrome are at higher risk of miscarriage. Between 30 and 50% of pregnancies occurring in women with PCOS end in a miscarriage.
  • Certain disorders and illnesses increase chances of having a miscarriage: for instance severe hypothyroidism increases risk of a miscarriage as do illnesses such as rubella, Chlamydia etc,
  • Smoking and substance abuse such as cocaine also greatly increases the chances of miscarriage.
  • Physical injury and environmental factors also can pose risk to a pregnancy.

Understanding the risk factors for a pregnancy ending in miscarriage is important in minimizing the chances of occurrence.


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