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Misdiagnosis

Misdiagnosis of Ectopic Pregnancy: NY Malpractice Rights

MDLaw Firm Legal TeamJuly 23, 2026

An ectopic pregnancy — where the embryo implants outside the uterus — is a life-threatening emergency. When doctors fail to diagnose it promptly, rupture and hemorrhage can be fatal.

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Misdiagnosis of Ectopic Pregnancy: NY Malpractice Rights

Excerpt: An ectopic pregnancy — where the embryo implants outside the uterus — is a life-threatening emergency. When doctors fail to diagnose it promptly, rupture and hemorrhage can be fatal.

What Is an Ectopic Pregnancy?

In a normal pregnancy, the fertilized egg implants in the uterus. In an ectopic pregnancy, the egg implants somewhere else — most commonly in the fallopian tube. As the pregnancy grows, the tube cannot stretch to accommodate it, and the tube eventually ruptures, causing massive internal bleeding.

Ectopic pregnancy is the leading cause of pregnancy-related death in the first trimester. The key to survival is early diagnosis and treatment — before rupture occurs. When doctors fail to diagnose an ectopic pregnancy in a timely manner, the consequences can be catastrophic: hemorrhage, loss of the fallopian tube, loss of fertility, or death.

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Risk Factors for Ectopic Pregnancy

Physicians should be particularly vigilant for ectopic pregnancy in patients with:

  • Previous ectopic pregnancy — The highest risk factor
  • Pelvic inflammatory disease (PID) — From chlamydia or gonorrhea
  • Endometriosis
  • Previous tubal surgery — Including tubal ligation
  • In vitro fertilization (IVF)
  • Intrauterine device (IUD) — Although pregnancy with an IUD is rare, when it occurs it is more likely to be ectopic
  • Maternal age over 35
  • Smoking
  • History of infertility

However, ectopic pregnancy can occur in any woman of childbearing age — even without risk factors. Every woman of reproductive age who presents with abdominal pain or vaginal bleeding should be evaluated for ectopic pregnancy.

Signs and Symptoms of Ectopic Pregnancy

Early Symptoms (Before Rupture)

  • Missed period — Amenorrhea
  • Abdominal or pelvic pain — Often unilateral
  • Vaginal bleeding — Usually light, spotting
  • Positive pregnancy test

Symptoms of Rupture

  • Sudden, severe abdominal pain — Sharp, stabbing
  • Shoulder pain — From blood irritating the diaphragm (referred pain)
  • Dizziness or syncope — From blood loss
  • Nausea and vomiting
  • Signs of shock — Tachycardia, hypotension, pallor

How Ectopic Pregnancy Is Misdiagnosed

1. Failure to Perform a Pregnancy Test

The standard of care requires a pregnancy test (urine or serum hCG) for any woman of childbearing age who presents with abdominal pain or vaginal bleeding. Failure to perform a pregnancy test is a clear breach of the standard of care.

2. Failure to Perform Ultrasound

When a pregnancy test is positive, the standard of care requires a transvaginal ultrasound to locate the pregnancy. If the pregnancy cannot be located in the uterus (a "pregnancy of unknown location"), ectopic pregnancy must be considered and the patient monitored closely.

3. Failure to Interpret hCG Levels Correctly

In a normal pregnancy, the serum hCG level approximately doubles every 48 hours. In an ectopic pregnancy, the hCG rises more slowly or may even decline. Failure to measure serial hCG levels — or failure to interpret the pattern correctly — can lead to a missed diagnosis.

4. Misdiagnosis as a Normal Pregnancy

A patient with an ectopic pregnancy may be told she has a normal intrauterine pregnancy — especially if the ultrasound is misinterpreted or performed too early. This can give false reassurance and delay the diagnosis.

5. Misdiagnosis as a Miscarriage

An ectopic pregnancy may be misdiagnosed as a threatened miscarriage — especially if the patient has vaginal bleeding. While the patient is being managed for a miscarriage, the ectopic pregnancy continues to grow until it ruptures.

6. Failure to Follow Up

A patient with a "pregnancy of unknown location" must be followed with serial hCG measurements and repeat ultrasound until the pregnancy is located or resolves. Failure to follow up is a common and dangerous error.

Consequences of Delayed Diagnosis

  • Tubal rupture — The fallopian tube bursts, causing massive internal bleeding
  • Hemorrhagic shock — From blood loss
  • Loss of the fallopian tube — Requiring salpingectomy
  • Loss of fertility — If the tube cannot be preserved
  • Death — From exsanguination

Proving an Ectopic Pregnancy Misdiagnosis Claim

Key Evidence

  • Emergency room or OB-GYN records — Documenting the patient's presentation and evaluation
  • Pregnancy test results — Whether a pregnancy test was performed and when
  • Ultrasound reports — Whether and when ultrasound was performed, and what it showed
  • hCG levels — Serial measurements and the trend
  • Operative reports — If surgery (laparoscopy or laparotomy) was performed
  • Pathology reports — Confirming the ectopic pregnancy

Expert Witnesses

Ectopic pregnancy cases require testimony from:

  • An obstetrician-gynecologist — On the standard of care for evaluating ectopic pregnancy
  • A reproductive endocrinologist — On fertility impact
  • A maternal-fetal medicine specialist — In complex cases

Statute of Limitations

Under CPLR 214-a, the statute of limitations is 2.5 years from the date of the malpractice.

Frequently Asked Questions

What is an ectopic pregnancy?

An ectopic pregnancy is a pregnancy where the embryo implants outside the uterus — most commonly in the fallopian tube. It is a life-threatening emergency that requires prompt diagnosis and treatment.

How is ectopic pregnancy diagnosed?

Ectopic pregnancy is diagnosed through a combination of pregnancy testing (urine or serum hCG), transvaginal ultrasound (to locate the pregnancy), and serial hCG measurements (to monitor the pregnancy's progression).

Can ectopic pregnancy be misdiagnosed?

Yes. Ectopic pregnancy is frequently misdiagnosed as a normal pregnancy, a threatened miscarriage, or another condition. The standard of care requires a pregnancy test for any woman of childbearing age with abdominal pain or vaginal bleeding.

What happens if an ectopic pregnancy ruptures?

A ruptured ectopic pregnancy causes massive internal bleeding that can lead to hemorrhagic shock, loss of the fallopian tube, loss of fertility, and death. Emergency surgery is required.

How long do I have to file a claim?

Under CPLR 214-a, the deadline is generally 2.5 years from the date of the malpractice.


If you or a loved one has been affected by misdiagnosis of ectopic pregnancy in New York, contact MDLaw Firm at 347-524-5777 for a free consultation.

This article is for informational purposes only and does not constitute legal advice. Prior results do not guarantee a similar outcome. No attorney-client relationship is created by reading this article or contacting MDLaw Firm.

Author

MDLaw Firm Legal Team

MDLaw Firm Legal Team is a New York medical malpractice attorney with decades of experience litigating complex medical negligence cases. As a member of the Multi-Million Dollar Advocates Forum and Super Lawyers selectee, MDLaw Firm Legal Team focuses exclusively on representing patients harmed by medical errors in New York State courts, with a track record of multi-million-dollar verdicts and settlements.

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