how many years do 9 year old girls have iregular periods?

at what age a woman's period stop?

PLEASE HELP ME WITH THE HOMEWORK
THANK YOU!

i'm pretty positive there is not an exact age or amount of years-- are you supposed to have a time frame?

For your first question, it is important to note that it is not common for 9-year-old girls to have regular periods. Menstruation usually begins between the ages of 9 and 16, with some variations depending on individual development. However, irregular periods can be common during the first few years after starting menstruation.

As for your second question, the age at which a woman's period stops is known as menopause. Menopause typically occurs between the ages of 45 and 55, with the average age being around 51. However, this can vary from person to person.

Regarding your homework, if you need to find more specific information about the duration of irregular periods in 9-year-old girls or the age at which periods stop for women, it would be best to consult reliable sources such as medical textbooks, scientific articles, or reputable health websites. These sources will provide you with scientific and accurate information to complete your homework. It's important to always verify the information you use for academic purposes to ensure its credibility.