What is considered a healthy menstrual cycle length for most adults?
Answer
21 to 35 days
A healthy menstrual cycle for an adult does not have to be exactly 28 days. The medical consensus recognizes that any cycle length falling between 21 and 35 days is perfectly normal and healthy. This range accounts for natural variability and acknowledges that individual physiology does not adhere to a rigid monthly calendar. Relying on a 28-day target often creates unnecessary anxiety, whereas staying within the 21 to 35-day window indicates that the body is functioning within an expected range.
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