NEET BIOLOGY

Detailed explanation-1: -How long is a normal menstrual cycle? The average length of a menstrual cycle is 28 days. However, a cycle can range in length from 21 days to about 35 days and still be normal.

Detailed explanation-2: -Your menstrual cycle is the time from the first day of one period to the first day of your next period. So if you have a 28-day cycle, it takes 28 days to get from the beginning of one period to the beginning of the next.

Detailed explanation-3: -The average menstrual cycle lasts 28 days. The cycle starts with the first day of one period and ends with the first day of the next period. The average woman ovulates on day 14. At this time, some women have minor discomfort in their lower abdomen, spotting, or bleeding, while others do not have any symptoms at all.

Detailed explanation-4: -The average menstrual cycle is about 28 days. This means that about 28 days pass between the first day of your period and the first day of your next period. Not everyone has this textbook cycle, though. You may find that your periods typically occur every 21 to 35 days.

Detailed explanation-5: -The human menstrual cycle is only the about same length as the lunar month – it isn’t synchronised with a particular phase. Charles Darwin thought that the 28-day human menstrual cycle was evidence that our ancestors lived on the seashore and needed to synchronise with the tides.