During puberty, a woman's first menstrual flow is known as

Correct option is D

The correct option is (d) Menarche 

• Menarche refers to the first menstrual period experienced by a female during adolescence.
• It typically occurs between the ages of 10 and 16, with the average age being around 12.4 years. However, the timing can vary, happening either earlier or later for some individuals.
  
• Common signs of the first period include light bleeding, mild cramping, and mood changes.
• The first few menstrual cycles may be very light, sometimes presenting as only a few spots of reddish-brown blood. A typical period lasts between 2 to 7 days. 

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Menopause 

• Menopause marks the phase in a woman’s life when menstrual cycles come to a permanent end, signifying the conclusion of her reproductive years.
• It is a natural biological process that typically occurs between the ages of 45 and 55.

Amenorrhea

• Amenorrhea is the medical term for the absence of menstrual periods, which can mean missing one or more cycles.
• Primary amenorrhea occurs when an individual has not experienced their first period by the age of 15.

Menorrhagia

• Menorrhagia, or heavy menstrual bleeding, refers to abnormally heavy or prolonged menstrual periods that last more than seven days. This condition can significantly impact a person's daily life, including their physical, emotional, social, and economic well-being.
  
• Common symptoms include passing blood clots larger than a quarter and experiencing signs of anemia, such as fatigue or weakness.