Types of Pregnancy Loss in Reccurent Miscarriage

Pregnancy loss is probably one of or if not the most devastating thing that can happen to a mother. There are a number of reasons why a pregnancy may be lost.

First-trimester Miscarriage

First-trimester miscarriages are the most common type of pregnancy loss. Miscarriage is generally used to refer to the spontaneous loss of pregnancy during the first trimester. About 80% of miscarriages occur in the first 12 weeks of pregnancy. The most common symptoms of a first-trimester miscarriage include vaginal bleeding and cramping.

Chemical pregnancy

What usually comes to mind when one hears the term "chemical pregnancy" is a false pregnancy or a false positive on a pregnancy test. However, a chemical pregnancy is actually a very, very early miscarriage.

It occurrs at that point when you missed your period and tests such as a home pregnancy test or an hCG blood test confirmed that you were indeed pregnant – because a chemical pregnancy is really a conception.

However, before an ultrasound could show the gestational sac, the miscarriage occurred (this is when you get your period a few days later). When the pregnancy can be confirmed by an ultrasound, it is now called a clinical pregnancy.

Ectopic pregnancy

Ectopic pregnancies are when the fertilized egg implants in places other than the uterus, most commonly in the fallopian tube. Ectopic cannot be allowed to come to term for it will endanger the mother.

The cause of ectopic pregnancies are yet to be determined. Symptoms of ectopic pregnancies include dizziness and sever abdominal pain or cramping.

Blighted ovum

A blighted ovum refers to the type of pregnancy loss wherein the baby never develops but the gestational sac continues to grow – and all the while, the body does not recognize this and continues to experience pregnancy symptoms.

Doctors believe that the cause of blighted ovums are chromosomal abnormalities in the fertilized egg. In one study, it was found that 67% of the lighted ovum miscarriages samples contained abnormal chromosomes.

Missed miscarriage

In a missed miscarriage, the mother usually does not have miscarriage symptoms, and only finds out that the baby has stopped developing during a routine check-up. HCG blood tests may show that the hCG level of the mother is decreasing.

Ultrasound could determine if the baby’s heart has stopped beating. The first sign of a missed miscarriage is when the baby’s heartbeat is not audible on a fetal heart rate monitor by 12 weeks of gestation.

Molar pregnancy

Molar pregnancies are a type of gestational trophoblastic disease (GTD) or the abnormal growth of placental tissues.

There are two types of molar pregnancies: complete and partial hydatidiform moles. Both molar pregnancies are caused by chromosomal abnormalities during conception, which in turn causes overgrowth of the pregnancy tissue.

A partial molar pregnancy may grow into a fetus, and the placenta is unable to support a pregnancy. Plus, the chromosomal abnormalities are not compatible with life.

A complete molar pregnancy on the other hand, will not develop into a fetus. It is important that a molar pregnancy is treated and followed up by precautionary monitoring. If left unchecked, you could develop one of the following conditions:

Invasive moles – invades the walls of the uterus and could spread and metastasize into other parts of the body.

Choriocarcinoma – a kind of cancer that can develop where the placenta had been and spread to the body.

Second-trimester miscarriage

Although most miscarriages occur in the first 12 weeks of pregnancy, miscarriage in the second-trimester also happens.

There are a number of factors that may cause a second-trimester miscarriage. Some of these factors include: chromosomal abnormalities, cervical insufficiency, congenital birth defects, placental abruption, infections, thrombophilia disorders or the increased tendency to form internal blood clots due to genetic or immune system abnormalities.

Preterm delivery

Preterm deliveries are caused by cervical insufficiency or cervical incompetence. They occur when the cervix dilates too early in the pregnancy. Not all cervix insufficiency cases result in pregnancy loss. Cervical insufficiency may cause the birth of a preterm baby.


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