How do menstrual cycles typically behave during the initial years after menarche?
Answer
They are often long and unpredictable
In the years immediately following the onset of menstruation, the endocrine system is still in a developmental phase, working to establish a consistent rhythm. During this maturation period, it is standard for cycles to be longer than the adult norm or highly unpredictable, frequently exceeding 35 days. It takes several years for the body to stabilize these hormonal patterns, so deviations during this early stage are rarely indicative of pathology.
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