Monthly periods are defined as the time interval between two episodes of menses.
The monthly periods are termed as menstruation and bodily changes that occur
monthly in fertile women to facilitate the process of pregnancy. It occurs in
women between the average reproductive age group of 12 to 50 years and a
good symptom of general reproductive health.
Regular monthly periods reflects a secretion of a normal chemical substance by
the female glands and signal having female hormone like estrogen on board,
which in turn maintains bone mineral health, affects central nervous system
function, and many other functions. A secretion of female sex hormones tightly
regulates the system of controlling female reproduction process which could be
reflected in regular monthly periods.