Medical Education

Understanding Irregular Bleeding

What it is, why it's done, and what to expect

Your Progress1/7 sections

What Is Irregular Bleeding?

A “typical” menstrual cycle varies from person to person.

Most cycles occur about every 21–35 days and bleeding usually lasts 3–8 days.

Irregular bleeding can include:

  • •Periods that come more or less often than usual
  • •Bleeding or spotting between periods
  • •Bleeding after sex
  • •Bleeding after menopause
  • •Very heavy or very light periods
  • •Periods that last much longer than usual
Irregular bleeding illustration