One out of 10 women will have vaginal bleeding during their 3rd trimester. At times, it may be a sign of a more serious problem. In the last few months of pregnancy, you should always report bleeding to your health care provider right away.
You should understand the difference between spotting and bleeding:
What Causes Bleeding Later in Pregnancy?
When labor begins, the cervix starts to open up more, or dilate. You may notice a small amount of blood mixed in with normal vaginal discharge, or mucus.
Mid- or late-term bleeding may also be caused by:
More serious causes of late-term bleeding may include:
What to Tell Your Health Care Provider
To find the cause of your vaginal bleeding, your provider may need to know:
What Should Happen Next?
A small amount of spotting without any other symptoms that occurs after having sex or an exam by your provider can be watched at home. To do this:
For any other bleeding, call your provider right away.
Francois KE, Foley MR. Antepartum and postpartum hemorrhage. In: Gabbe SG, Niebyl JR, Simpson JL, et al, eds. Obstetrics: Normal and Problem Pregnancies. 7th ed. Philadelphia, PA: Elsevier; 2017:chap 18.
Frank J. Vaginal bleeding late in pregnancy. In: Kellerman RD, Bope ET, eds. Conn's Current Therapy 2018. Philadelphia, PA: Elsevier; 2018:1138-1139.
Salhi BA, Nagrani S. Acute complications of pregnancy. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 178.
Review Date: 9/25/2018
Reviewed By: John D. Jacobson, MD, Professor of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda Center for Fertility, Loma Linda, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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