Threatened Abortion

(Threatened Miscarriage; Threatened Pregnancy Loss)


Threatened abortion is a diagnosis that is made during the first 20 weeks of pregnancy. While some women have vaginal bleeding in the first 3 months of pregnancy, bleeding and symptoms that could suggest an increased risk of miscarriage are called threatened abortion.
Fetus in First Trimester
Nucleus image
Copyright © Nucleus Medical Media, Inc.


Early-pregnancy bleeding can originate from the uterus, cervix, vagina, or the external genital area.In many cases, the cause of the bleeding is due to a minor condition that requires no treatment. If you have any vaginal bleeding during your pregnancy, especially if you also have abdominal pain, you should contact your doctor.Possible causes of bleeding include:
  • Implantation of the embryo
  • Infection
  • Irritation, which may occur after intercourse
  • Miscarriage
  • The baby develops outside of the uterus—ectopic pregnancy
  • Molar pregnancy (rare growth inside the uterus)

Risk Factors

Factors that may increase your risk of threatened abortion include:
  • Infection
  • Trauma
  • Certain medications
  • Advanced maternal age


The main symptom is bleeding during the first 20 weeks of pregnancy. Bleeding may be light or heavy. You may also have abdominal cramping.


Your doctor will ask about your symptoms and medical history. A physical exam will be done.Tests that may be done include:

leave comments
Did you like this? Share with your family and friends.
Related Topics:
Current Research From Top Journals

Water Before Meals May Promote Weight Loss
August 2015

A randomized trial found that drinking water before main meals led to higher weight loss than those who were asked to imagine a full stomach before main meals. Water preloading is believed to help create a feeling of fullness or satiety during the meal, which may help curb overeating.

dot separator
previous editions

Fecal Transplants Induce Ulcerative Colitis Remission
July 2015

Exercise Associated with Healthy Baby Weight
June 2015

Mindful Meditation May Reduce Symptoms and Complications of Insomnia
May 2015

dashed separator


Our Free Newsletter
click here to see all of our uplifting newsletters »