A sudden pregnancy loss in the first 20 weeks is called a miscarriage, there are Many Causes Of Miscarriage. This loss is faced by almost 10-20 percent of pregnancies. Actually, the number may be higher than that, because some people lose their pregnancy in the very early days when they do even not know about their pregnancy.
You didn’t do anything wrong in carrying the pregnancy just because it was referred to as a “miscarriage.” Most miscarriages happen when the fetus stops growing and are out of your control.
There are some major causes of miscarriage as follows below:
Abnormalities Related to Chromosomes
Over 50% of the time, a chromosomal issue with the developing child is the cause of miscarriages that occur in the first 12 weeks of pregnancy. This is the most frequent reason for miscarriage, according to the American College of Obstetricians and Gynecologists (ACOG), which is a genetic anomaly in the embryo. The genes that define your baby’s distinctive characteristics, such as hair and eye color, are located on chromosomes. When one or more chromosomes are missing or damaged, a newborn cannot develop normally.
Sometimes something can go wrong during conception, resulting in the embryo receiving an excessive or insufficient number of chromosomes. The causes of this are frequently unknown, but the result is a miscarriage since the fetus cannot develop correctly.
Medical History of Mother
One of the main causes of miscarriage includes the medical history of the pregnant person. If a mother suffered some type of disease for a long time, this may also increase the risk of sudden miscarriage.
Some of these diseases are:
- Diabetes (which is not controlled)
- High blood pressure
- Imbalance in hormones
- Kidney disease in severe condition
- Thyroid disease
- Infection like cytomegalovirus
- Lupus
- Antiphospholipid syndrome(APS)
- STD infections like gonorrhea, HIV, or syphilis
Placenta Issues in Causes of Miscarriage
The organ that connects your blood supply to your unborn child’s is the placenta. It should be placed near the top of the uterus and has the shape of a pancake.
The placenta usually performs its function without any problems, but occasionally it has issues that can lead to a number of disorders, such as preterm birth and pregnancy loss. Sometimes the placenta is functioning normally during pregnancy, and the pregnant lady is unaware of any issues until they are addressed during prenatal care. But sometimes, there are obvious indications that something is wrong, such as the following:
- Pain in the back
- Tenderness in the womb
- Incipient contractions
- Vaginal bleeding
- Pain in abdomen

Age Factor
Pregnant women’s age is also a factor in the causes of miscarriage. In both the first and second trimesters, having a miscarriage is more likely when you’re older. For women, the risk of miscarriage rises after the age of 35, while for men, it rises after the age of 40.
Age factor basically affects in such a way:
- A woman under the age of 30, has a 10% chance of losing her baby in a miscarriage
- A woman of age 35-39, has a 20% chance of losing her baby in a miscarriage
- A woman over 45, has a chance of than 50% of losing her baby in a miscarriage
Maternal Way of Living
Numerous factors related to maternal’s lifestyle have been connected to lower fertility levels and a higher chance of miscarriage.
The factors include in causes of miscarriage are as below:
- Use of tobacco products: Smoking raises the risk of miscarriage for all females who are fertile. If you smoke more than 10 cigarettes per day while pregnant, your risk of fetal mortality (miscarriage) is 23% higher. Even if only the father smokes, several studies indicate an elevated danger to a pregnancy.
- Use of alcohol: Studies show that the use of alcohol in pregnancy increases the risk of miscarriage.
Some further factors are:
- Heavy drinking
- Pesticides
- Air pollution
- Metals
- Drugs
To reduce the chance of miscarriage, it is highly advised that all women who are attempting to get pregnant or who are already mothers change their lifestyles.
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