What is the common duration of menstrual flow considered normal?

The common duration of menstrual flow typically considered normal is between 3 to 7 days. This time frame encompasses the average length of menstruation experienced by many individuals.

A flow duration of 2-4 days may be considered shorter than average, while a duration of 5-10 days extends beyond the usual norm and might indicate underlying health issues such as hormonal imbalances or other conditions. The range of 4.5 to 8 days, while inclusive of some variations, is less commonly cited in clinical guidelines than the range of 3 to 7 days. Thus, the option specifying 3-7 days aligns more closely with established medical standards for menstrual flow.