What is an Ectopic Pregnancy?
After fertilisation, the egg usually moves to the uterus and attaches to its lining, where the baby can grow. However, in an ectopic pregnancy, the fertilised egg grows outside the uterus. This occurs in the fallopian tube in most cases, which connects the ovaries to the uterus. In rare cases, the egg may attach to the ovary, cervix, or abdomen.
Ectopic pregnancy is a serious issue that needs quick treatment. The pregnancy needs to be terminated through medicines, treatments, and surgery, if required.
What are the Types of Ectopic Pregnancy?
Depending on where the fertilised egg implants, the following types of ectopic pregnancies can occur:
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Tubal Ectopic Pregnancy
Normally, the fallopian tube carries the fertilised egg to the uterine cavity over several days. However, in a tubal ectopic pregnancy, the embryo implants in the tube before completing its journey to the uterus. This is the most common type of ectopic pregnancy.
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Interstitial Ectopic Pregnancy
An interstitial ectopic pregnancy develops in the section of the fallopian tube that goes through the wall of the uterus. These pregnancies can be hard to identify on scans, as they may appear to be in the uterus, especially in early pregnancy.
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Ovarian Ectopic Pregnancy
In this case, the pregnancy develops on or within an ovary. It can closely resemble other ovarian structures on imaging tests, making diagnosis challenging. In this type of ectopic pregnancy, the doctors often need to remove the affected ovary completely or partially.
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Abdominal Ectopic Pregnancy
An abdominal ectopic pregnancy occurs when the pregnancy implants somewhere within the abdominal cavity. It is thought that many of these pregnancies may have originally begun elsewhere before attaching to a structure inside the abdomen. In some cases, they can remain undetected for several weeks.
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Heterotopic Ectopic Pregnancy
Heterotopic pregnancy means two pregnancies at the same time. One pregnancy is growing inside the uterus, and the other is growing outside the uterus. It is rare, but careful medical management is needed to manage the ectopic pregnancy and preserve the viable pregnancy where possible.
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Intramural Ectopic Pregnancy
This type occurs when the fertilised egg implants in the muscular wall of the uterus rather than inside the uterine cavity. It is an uncommon form of ectopic pregnancy and is often associated with previous uterine surgery or damage to the uterine wall.
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Caesarean Scar Ectopic Pregnancy
This type of pregnancy occurs when the fertilised egg implants in the gap in the uterine muscle left by a previous caesarean delivery. As the pregnancy grows, it can weaken the surrounding tissue and increase the risk of significant bleeding, making early diagnosis especially important.
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Rudimentary Horn Ectopic Pregnancy
This type of pregnancy occurs when the woman is born with a differently formed uterus. In this case, the uterus has a 'rudimentary horn', a part that is not connected to the vagina or the cervix but has its own fallopian tube. If the egg is transported to this part of the uterus, an ectopic pregnancy can happen.
How Common is an Ectopic Pregnancy in India?
Ectopic pregnancy is a significant contributor to death cases in early pregnancy in India, making up 3.5 to 7.1% of maternal deaths. Studies show that most cases involve rupture, which often needs a blood transfusion and sometimes ICU care. If diagnosis is delayed or missed, a treatable condition can quickly become life-threatening. This makes awareness and early detection very important.
Ectopic pregnancy affects about 1 to 2% of pregnancies in India, similar to the global rate. In 90 to 97% of cases, the fertilised egg implants in the fallopian tube, most often in the ampullary region. Other cases happen in the cervix, ovary, abdomen, or uterine scars.
Most cases are seen in women aged 21 to 30, and rates are higher among women from lower socioeconomic backgrounds. Pelvic inflammatory disease is one of the most common risk factors. Even though ectopic pregnancy is not very common, it can cause severe and sometimes fatal problems if not found and treated early.
What are the Symptoms of an Ectopic Pregnancy?
Signs of ectopic pregnancy can be different for everyone. Some women may have signs that resemble a normal early pregnancy, and other women may have other symptoms that need urgent medical attention. Sometimes there are no symptoms, and the condition is only discovered during an ultrasound scan.
Here are some common symptoms:
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Late or missed periods.
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Abnormal vaginal bleeding. It could be lighter, heavier, longer-lasting, or different from a normal period.
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Pain in the pelvis or lower back.
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The pain may be constant or periodic, ranging from a mild hurt to a sudden sharp discomfort.
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Pain that is more noticeable on one side of the abdomen.
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Shoulder tip pain, which may occur due to internal bleeding.
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Dizziness, weakness, light-headedness, or fainting.
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Pain or discomfort while passing urine.
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Pain during bowel movements.
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A feeling of rectal pressure.
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Diarrhoea
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Sharp or shooting vaginal pain.
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Abdominal bloating or a feeling of fullness.
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Looking pale, feeling unwell, or experiencing symptoms associated with blood loss.
What Causes Ectopic Pregnancy?
While the exact reason cannot be pinpointed, an ectopic pregnancy usually occurs when something interferes with the fertilised egg's journey to the uterus, causing it to implant in another location. Here are some possible causes:
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Damage to the Fallopian Tubes: Previous infections or inflammation can damage the fallopian tubes, making it more difficult for the fertilised egg to travel normally.
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Scar Tissue and Adhesions: Scar tissue left behind after pelvic surgery may narrow or obstruct the fallopian tubes, increasing the chance of the egg becoming trapped before it reaches the uterus.
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Structural Abnormalities of the Fallopian Tubes: Some women are born with fallopian tubes that have an unusual shape or structure. These factors may affect the movement of the fertilised egg through the reproductive tract.
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Growths Blocking the Tube: A growth within or near a fallopian tube can partially or completely block the passage of the fertilised egg, preventing it from reaching the uterus.
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Hormonal Factors: Hormonal imbalances may affect the normal processes involved in fertilisation and implantation, which can contribute to an ectopic pregnancy.
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Abnormal Development of the Fertilised Egg: In some cases, changes in how the fertilised egg develops may play a role in causing it to implant outside the uterus.
Risk Factors of Ectopic Pregnancy
Often, the exact reason behind an ectopic pregnancy is never identified. In fact, up to half of all women who experience an ectopic pregnancy do not have any known risk factors.
Nevertheless, the following factors can be connected to ectopic pregnancy:
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History of Ectopic Pregnancy: If you have had an ectopic pregnancy, you are at a higher risk of having another one.
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Older Age of the Mother: The likelihood of ectopic pregnancy rises with age, particularly in women over 35 years.
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Pelvic Inflammatory Disease: Past infections affecting the reproductive system can lead to inflammation and scarring, which may interfere with the normal movement of the fertilised egg.
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Fertility Treatments: Assisted reproductive techniques, including IVF, have been associated with a higher chance of ectopic pregnancy. A history of infertility may also contribute to the risk.
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Surgery Involving the Fallopian Tubes or Pelvis: Previous procedures on the fallopian tubes, as well as other pelvic or abdominal surgeries, may result in scar tissue that affects egg transport.
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Endometriosis: Women with endometriosis are more likely to experience an ectopic pregnancy, although the exact reason for this association is not fully understood.
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Use of an Intrauterine Device (IUD): Pregnancy while using an IUD is uncommon, but if it does occur, there is a greater likelihood of it being ectopic.
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Previous Tubal Ligation (Sterilisation): Although pregnancy after tubal ligation is rare, pregnancies that occur after the procedure have a higher chance of being ectopic.
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Emergency Contraception Failure: If pregnancy occurs despite the use of emergency contraception, the risk of ectopic implantation may be increased.
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Smoking: Tobacco use can affect the normal function of the fallopian tubes. The risk tends to increase with heavier smoking.
What are the Complications of Ectopic Pregnancy?
An ectopic pregnancy needs immediate medical help, because it can lead to grave and potentially life-threatening complications if left untreated. Here are some examples.
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Rupture of the Fallopian Tube: As the fertilised egg continues to grow outside the uterus, it can cause the affected fallopian tube to tear or burst.
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Internal Bleeding: A ruptured ectopic pregnancy can lead to significant blood loss inside the abdomen, which is a medical emergency.
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Shock and Organ Failure: Heavy bleeding can also lead to dangerously low blood pressure, shock and potentially multiple organ failure.
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Damage to Reproductive Organs: The growing pregnancy can injure the fallopian tube and nearby tissues, sometimes requiring surgical removal of the affected tube.
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Reduced Fertility: Damage to the reproductive organs may make it more difficult to conceive in the future.
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Emotional and Psychological Effects: The loss of a pregnancy, combined with the stress of a medical emergency, can have a significant emotional effect and may lead to anxiety, grief, or psychological distress.
When Should I See My Healthcare Provider?
If you notice symptoms of pregnancy along with abnormal signs, like abdominal pain, bleeding, dizziness, or any other signs associated with an ectopic pregnancy, it is important to consult a doctor as soon as possible. Ectopic pregnancies can sometimes be difficult to identify based on symptoms alone, and a proper diagnosis usually requires medical evaluation, blood tests, and ultrasound scans.
Patients with an ectopic pregnancy require emergency medical help in some cases. If you have extreme abdominal or pelvic pain with vaginal bleeding, extreme light-headedness or fainting, or shoulder tip pain, call an ambulance straight away. These symptoms may indicate internal bleeding and are an emergency.
How is an Ectopic Pregnancy Diagnosed?
It can be difficult to diagnose this type of pregnancy, as the symptoms are often similar to a normal pregnancy. Generally, ultrasounds, tests, and physical examinations are required to accurately diagnose it.
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Medical Examination
A doctor can perform an exam of the pelvis to identify any areas of pain, tenderness, or an unusual mass near the fallopian tubes or ovaries.
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Pregnancy Tests
A urine or blood test checking for the hormone human chorionic gonadotropin (hCG) is used to confirm pregnancy. In a healthy pregnancy, hCG levels rise steadily over time. In an ectopic pregnancy, these levels are lower and rise more slowly than expected.
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Ultrasound Scanning
A first ultrasound scan can identify an ectopic pregnancy in at least 7 out of 10 cases. A probe is placed into the vagina, which emits sound waves that produce detailed pictures of the uterus, fallopian tubes, and ovaries. In some cases, an abdominal ultrasound may also be performed to check for symptoms of internal bleeding.
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Blood Tests
A complete blood count may also be done to check for anaemia or signs of blood loss. If an ectopic pregnancy is confirmed, blood type testing may be ordered in case a transfusion becomes necessary.
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Laparoscopy
If the location of the pregnancy remains unclear after ultrasound and blood tests, a laparoscopy may be performed. If an ectopic pregnancy is found during the procedure, it may be removed at the same time to avoid the need for a second operation.
How is an Ectopic Pregnancy Treated?
Since a fertilised egg cannot survive or develop normally outside the uterus, treatment is always necessary to end the ectopic pregnancy and protect the woman from life-threatening complications. Let's understand how it is treated.
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Expectant Management
In cases where symptoms are mild, the pregnancy is very small, and hCG levels are low and declining, careful monitoring may be all that is required. There is a possibility the pregnancy will dissolve on its own. Regular blood tests are carried out to track hCG levels until the hormone is no longer detectable.
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Medicines
When the condition is diagnosed early, and the fallopian tube has not already ruptured, a medicine called methotrexate may be recommended. It works by halting cell growth and allowing the existing pregnancy tissue to be absorbed by the body. It is administered as a single injection and does not require a hospital stay.
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Surgery
Surgery is necessary if the fallopian tube has already ruptured, there is a lot of internal bleeding, or medication is not an option. Depending on the extent of damage and the condition of the other fallopian tube, the surgeon may be able to remove the ectopic pregnancy and preserve the fallopian tube (salpingostomy) or may need to remove both the pregnancy and the affected tube (salpingectomy). If the tube has ruptured and requires emergency surgery, a larger incision in the abdomen may be necessary.
Can Ectopic Pregnancy be Prevented?
There is no known way to prevent an ectopic pregnancy. The most important factors in reducing its risk to your health are early detection and prompt treatment, which is why awareness of its symptoms is so valuable.
Once you know the risk factors, you can take steps to keep yourself healthy before you try to conceive. This includes quitting smoking, achieving and maintaining a healthy weight, and seeing a doctor before trying to conceive, especially if you have a history of pelvic inflammatory disease, past ectopic pregnancy or other known risk factors.
What is the Prognosis of Ectopic Pregnancy?
An ectopic pregnancy cannot be continued and must be terminated to protect the mother's health. While the procedure is an emotionally and physically difficult experience, the outlook for most women following treatment is positive. Many go on to conceive and have healthy pregnancies thereafter. Although it may be physically possible to conceive shortly after treatment, it is generally advisable to wait at least three months before trying again.
If a woman has had one of her fallopian tubes removed, then the chances of a future pregnancy are still good. For natural conception, only one fallopian tube is needed. In people with other fertility problems, assisted reproductive techniques such as IVF can provide another way to conceive. These do not use the fallopian tubes.
Does Health Insurance Cover Ectopic Pregnancy?
Yes, most health insurance policies cover the treatment of ectopic pregnancy. While pregnancy-related expenses are generally covered under the maternity add-on cover of a health insurance plan, ectopic pregnancy is usually covered under the policy's base health insurance cover as it is considered a life-threatening medical emergency.
The policy usually covers the hospitalisation expenses for treating the condition, such as room rent, nursing charges, surgeons fees, operation theatre charges, medicines, diagnostic tests, and other treatment-related expenses. Coverage limits, waiting periods, exclusions and more may vary from one insurer to another, so you should read your policy documents carefully or discuss with your insurer to understand the benefits provided under your plan.
How Much Health Insurance is Required for Ectopic Pregnancy?
Treatment for an ectopic pregnancy can be expensive, particularly because it often requires hospitalisation, specialised diagnostic tests, and, often, emergency surgery. Considering the nature of the condition and the rising cost of healthcare in India, it is generally advisable to have health insurance coverage of at least ₹10 lakh to ₹20 lakh.
FAQs
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Q1. How do you know if you have an ectopic pregnancy?
Ans: An ectopic pregnancy may cause symptoms such as a missed period, unusual vaginal bleeding, abdominal or pelvic pain, dizziness, fainting, or shoulder tip pain. However, symptoms alone are not enough for a diagnosis, and medical tests such as blood tests and ultrasound scans are usually required. -
Q2. What happens to your body after an ectopic pregnancy?
Ans: After treatment, most women recover well and can go on to have healthy pregnancies in the future. However, an ectopic pregnancy can sometimes affect fertility, particularly if there is damage to a fallopian tube or if one has to be removed. -
Q3. What causes an ectopic pregnancy?
Ans: An ectopic pregnancy usually occurs when something prevents the fertilised egg from reaching the uterus. Possible causes include damage to the fallopian tubes, scar tissue from previous surgery, structural abnormalities of the tubes, hormonal factors, growths blocking the tube, or abnormal development of the fertilised egg.
