Bleeding between periods; Intermenstrual bleeding; Spotting; Metrorrhagia
Causes may include:
Normal menstrual flow lasts about 5 days. It produces a total blood loss of 30 to 80 mL (about 2 to 8 tablespoons), and occurs normally every 21 to 35 days.
Vaginal bleeding that occurs between periods or after menopause can be caused by various problems. Most are benign and can be easily treated. Sometimes, vaginal bleeding may be due to cancer or pre-cancer. Therefore, any unusual bleeding should be evaluated right away. The risk for cancer increases to about 10% in women with postmenopausal bleeding.
Make sure that bleeding is coming from the vagina and is not from the rectum or the urine. Inserting a tampon into the vagina will confirm the vagina, cervix, or uterus as the source of bleeding.
A careful exam by your health care provider is most often the best way to find the source of the bleeding. This exam can be done even while you are bleeding.
This article discusses vaginal bleeding that occurs between a woman's monthly menstrual periods. Such bleeding may be called "intermenstrual bleeding."
Related topics include:
Contact a provider right away if bleeding is very heavy.
Keep track of the number of pads or tampons used over time so that the amount of bleeding can be determined. Uterine blood loss can be estimated by keeping track of how frequently a pad or tampon is soaked and how often one needs to be changed.
If possible, aspirin should be avoided, as it may prolong bleeding. However, NSAIDS such as ibuprofen can be used to minimize bleeding and cramping.
The provider will perform a physical exam and ask questions about your medical history. The physical exam will include a pelvic exam.
Questions about the bleeding may include:
Tests that may be done include:
Call your provider if:
Bulun SE. Physiology and pathology of the female reproductive axis. In: Melmed S, Polonsky KS, Larsen PR, Kronenberg HM, eds. Williams Textbook of Endocrinology. 13th ed. Philadelphia, PA: Elsevier; 2016:chap 17.
Ellenson LH, Pirog EC. The female genital tract. In: Kumar V, Abbas AK, Aster JC, eds. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 22.
Ryntz T, Lobo RA. Abnormal uterine bleeding: etiology and management of acute and chronic excessive bleeding. In: Lobo RA, Gershenson DM, Lentz GM, Valea FA, eds. Comprehensive Gynecology. 7th ed. Philadelphia, PA: Elsevier; 2017:chap 26.
Review Date: 5/10/2017
Reviewed By: Anita Sit, MD, Department of OB/GYN, Santa Clara Valley Medical Center, San Jose, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 9-1-1 for all medical emergencies. Links to other sites are provided for information only—they do not constitute endorsements of those other sites. © 1997-2010 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.