Common Reasons for a Miscarriage

There are five reasons for miscarriages that occur most frequently. Unfortunately many pregnancies end in miscarriage, usually due to no fault of the mother. Many women feel guilty after a miscarriage, thinking that they somehow contributed to the loss of their child. It is important for these women to understand that roughly 15% to 20% of pregnancies will end in miscarriage. 

Chromosomal Abnormalities
Chromosomal abnormalities occur when there is an abnormality with either the sperm or egg, such as the wrong number of chromosomes. A blighted ovum is also a chromosomal abnormality. This happens when the placenta and gestational sac develop, but the embryo doesn't form or stops developing early on.

Abnormalities with Uterus or Cervix
A woman with a uterus that is misshapen or has an irregular shape or size is more likely to have a miscarriage. The same goes for a weak cervix, which occurs when the cervix widens and releases the fetus without warning signs of labor. There are ways to treat this and prevent it in future pregnancies, including corrective surgery on the uterus and a stitch in the cervix to keep it from widening.

Infection
Infection causes many miscarriages. Infections that can be life-threatening to a fetus include Chlamydia, rubella and herpes. To prevent a miscarriage due to infection, be sure to have regular pap smears and STD screenings. If you have an infection, getting it treated early on can reduce your chances of miscarriage.

Medical Issues with the Mother
Disorders such as thyroid or adrenal gland problems, celiac disease and diabetes can all lead to a miscarriage. If you know or suspect you have any of these disorders, it's vital to seek medical treatment immediately. Sometimes miscarriage can be prevented with early treatment. These disorders can also make getting pregnant difficult, so if you're trying to have a baby, it's important to see a doctor.

Unknown
This is difficult for a mother to accept, but sometimes there is simply no known reason that a pregnancy didn't continue to full term. Even when doctors run tests to determine the cause for a lost pregnancy, no known reason is found. This can increase the chances of a mother feeling guilty, but it is important to remember that it is usually out of her control.

If you suffer a miscarriage, it doesn't mean that you can't have a full-term pregnancy in the future. Women who have had a miscarriage have a 25% chance of having another one, which is only slightly higher than the 20% rate for women who've never had a miscarriage.

If it happens to you, be sure to get the medical and emotional help that you need. Have a full screening to rule out any medical causes. Find support to deal with any feelings of guilt and grief, and prepare yourself to start the process again with a positive and hopeful attitude.

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