https://www.healthcentral.com/article/bleeding-in-between-periods-what-does-it-mean
Sexual HealthSymptoms

What Causes Bleeding Between Periods?

Young woman patient with gynecologist in the office.
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    Robin Elise Weiss, Ph.D.

    Robin Elise Weiss, Ph.D.

    @RobinPregnancy

    Robin Elise Weiss, Ph.D., LCCE, CLC, AdvCD(DONA) is a childbirth educator, doula, founder of Childbirth.org, and the award-winning pregnancy and parenting author of “The Complete Illustrated Guide to Pregnancy” and more than 10 other books. Between her nine children, teaching childbirth classes, and attending births for more than two decades, she has built up an impressive and practical knowledge base. You can follow Robin on Twitter @RobinPregnancy, Instagram, and Facebook.