The typical menstrual cycle lasts about 28 days on average, but it can vary in adults from 21 to 35 days, and in young teens from 21 to 45 days. The length of the menstrual cycle is calculated from the first day of one period to the first day of the next period. This can vary from person to person and can also change over the person's lifetime. If you have concerns about changes in your menstrual cycle, it's crucial to discuss them with a healthcare provider. Dr. Richard Beyerlein MD, located in Eugene OR, is available to answer any questions and address any concerns you may have about your menstrual health. Remember, it is perfectly normal for your cycle to fluctuate occasionally, but prolonged irregularities may indicate an underlying issue that requires medical attention. Don't hesitate to reach out; you can call us or conveniently book an appointment online. Your health is our top priority. We are conveniently located at 911 Country Club Rd. Suite 222, Eugene, OR 97401. We serve patients from Eugene OR, Coburg OR, Creswell OR, Cottage Grove OR, Junction City OR, Lowell OR, Springfield OR, and surrounding areas.