Is a Threatened Abortion?
A threatened abortion is vaginal bleeding that occurs in the
first 20 weeks of pregnancy. The bleeding is sometimes accompanied by abdominal
cramps. These symptoms indicate that a miscarriage is possible, which is why the
condition is known as a threatened abortion or threatened miscarriage.
Vaginal bleeding is fairly common among pregnant women. About 20
to 30 percent of women will experience bleeding during the first 20 weeks
of pregnancy. Approximately 50
percent of these women will carry their baby to term.
The exact cause of a threatened abortion usually isn’t known.
However, it’s more common among women who have previously had a miscarriage.
Are the Symptoms of a Threatened Abortion?
Any vaginal bleeding during the first 20 weeks of pregnancy can
be a symptom of a threatened abortion. Some women also have abdominal cramps or
lower back pain.
During an actual miscarriage, women often experience either a dull
or sharp pain in the abdomen and lower back. They may also pass tissue with clot-like
material from the vagina.
Call your doctor or obstetrician immediately if you’re pregnant
and experiencing any of these symptoms.
Is at Risk for a Threatened Abortion?
The actual cause of a threatened abortion isn’t always known.
However, there are certain factors that may increase your risk of having one.
- a bacterial or viral infection during pregnancy
- trauma to the abdomen
- advanced maternal age (over age 35)
- exposure to certain medications or chemicals
Other risk factors for a threatened abortion include obesity and
uncontrolled diabetes. If you’re overweight or have diabetes, speak with your
doctor about ways to stay healthy during pregnancy.
You should also tell your doctor about any medications or
supplements you’re taking. Some may be unsafe to use during pregnancy.
Is a Threatened Abortion Diagnosed?
Your doctor may perform a pelvic exam if a threatened abortion is
suspected. During a pelvic exam, your doctor will examine your reproductive
organs, including your vagina, cervix, and uterus. They’ll look for the source
of your bleeding and determine whether the amniotic sac has ruptured. The
pelvic exam will only take a few minutes to complete.
An ultrasound will be done to monitor the heartbeat and
development of the fetus. It can also be done to help determine the amount of
bleeding. A transvaginal
ultrasound, or an ultrasound that uses a vaginal probe, is typically more
accurate than an abdominal ultrasound in early pregnancy. During a transvaginal
ultrasound, your doctor will insert an ultrasound probe about 2 or 3 inches
into your vagina. The probe uses high-frequency sound waves to create images of
your reproductive organs, allowing your doctor to see them in more detail.
Blood tests, including a complete blood count,
may also be performed to check for abnormal hormone levels. Specifically, these
tests will measure the levels of hormones in your blood called human chorionic
gonadotropin (HCG) and progesterone. HCG is a hormone that your body produces
during pregnancy, and progesterone is a hormone that supports pregnancy.
Abnormal levels of either hormone may indicate a problem.
Is a Threatened Abortion Treated?
A miscarriage often can’t be prevented. In some cases, however,
your doctor may suggest ways to lower your risk of having a miscarriage.
As you recover, your doctor may tell you to avoid certain
activities. Bed rest and avoiding sexual intercourse may be suggested until
your symptoms go away. Your doctor will also treat any conditions known to increase
the risk of complications during pregnancy, such as diabetes or hypothyroidism.
Your doctor may also want to give you an injection of
progesterone to increase levels of the hormone. Your doctor will also
administer Rh immunoglobulin if you have Rh-negative blood and your developing
baby has Rh-positive blood. This stops your body from creating antibodies
against your child’s blood.
Is the Long-Term Outlook?
Many women who experience a threatened abortion go on to deliver
healthy babies. This is more likely if your cervix isn’t already dilated and if
the fetus is still securely attached to the wall of your uterus. If you have
abnormal hormone levels, hormone therapy can often help you carry the baby to
percent of women who experience a threatened abortion don’t have a
miscarriage. Most women who do miscarry will go on to have successful
pregnancies in the future. However, you should see your doctor to discuss
possible causes if you’ve experienced two or more miscarriages in a row.
For some women, a threatened abortion is a very stressful
experience and can lead to anxiety
and depression. It’s
important to talk to your doctor if you’re experiencing symptoms of either
condition following a threatened abortion or miscarriage. They can help you get
the treatment you need. Your doctor may also know about local support groups
where you can discuss your experience and concerns with others who can relate
to what you’re experiencing.
to Maintain a Healthy Pregnancy
It’s difficult to prevent a miscarriage, but certain behaviors can
help support a healthy pregnancy. These include:
- not drinking alcohol
- not smoking cigarettes
- not using illegal drugs
- minimizing consumption of caffeine
certain foods that can make you ill and harm your baby
- avoiding exposure to toxic chemicals or harsh
- promptly treating any viral or bacterial
infections that occur
- taking prenatal vitamins, such as folic acid
- exercising at least two hours per week
You can also maintain a healthy pregnancy by getting early,
comprehensive prenatal care. Receiving prompt prenatal care makes it possible
for your doctor to detect and treat any potential health problems early in the
pregnancy. This will prevent complications and help ensure the delivery of a