Miscarriage In Second Trimester

Submitted by Nick on January 17, 2012

A miscarriage in second trimester is basically defined as the spontaneous abortion of the child anytime between week 12 and week 20 of pregnancy. On the other hand, the loss of the child after 20 weeks into the pregnancy would be defined as a stillbirth or a neonatal death. Many women are also known to suffer from missed miscarriages which are basically miscarriages that a woman may suffer in the first trimester itself but which may have not been detected immediately. One of the most common miscarriage causes after 12 weeks of pregnancy is chromosomal abnormalities.


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There are also other miscarriage causes such as infections, abdominal trauma, congenital birth defects in the baby such as heart malformations, cervical incompetency or even very early preterm labor, placental abruption or other problems with the placenta. An incompetent cervix is one that is weaker and softer than normal and may tend to dilate and shorten as the increasing weight of the baby tends to exert pressure on it thereby causing a pre-term delivery, premature rupture of the fetal membranes or miscarriage in second trimester. Similarly, a placental abruption occurs when the placenta tends to separate from the uterus prematurely.

This is more commonly observed in women who are older, have had an accident, tend to smoke, abuse alcohol or drugs, or have consumed aspirin in the latter part of their pregnancy.

One of the main signs of miscarriage on account of a placental abruption is bleeding, however the amount of bleeding may vary according to the severity of the separation of the placenta from the uterus. Some other signs of miscarriage are cramping, tenderness of the abdomen, etc. Many women also tend to experience a miscarriage in their second trimester on account of a bacterial infection or certain pre-existing medical conditions in the mother such as thyroid problems, or diabetes.

One of the first signs of miscarriage is stomach cramps which are felt in a manner similar to the pain of menstrual cramps. Women who suffer a miscarriage may also experience heavy bleeding, nausea and blood clots. Another sign of a miscarriage is a gradual fading of the typical pregnancy symptoms such as loss or breast tenderness or morning sickness. In some cases, this may be normal and not be a cause to worry however the doctor should be notified about the same so that a thorough check may be done. Even in a normal pregnancy, some women may experience mild cramping which is not a sign of a miscarriage.

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