menarche
Menarche
The terms which describes this is menarche. Its the onset of menstruation . The average age is 11-12 years.
The term menarche means beginning of menstruation in girls. The usual age of this is 12 years.
The term menarche describes onset of menstruation. This is usually charachterisic of age 12 or 13.
Menstrual cycles begin at puberty. Women hit puberty at different times, just as men do. The average age for puberty is between 12 to 15 years old. Menstrual cycles usually begin somewhere within that range.
The function of both male and female puberty is to sexually mature
The scientific name for the reproductive phase in the menstrual cycle is known as menstruation or menstrual cycle.
"Teen' is the wrong word. Let's say, 'young female', OK, because this involves puberty, and girls are entering puberty as early as 8 or 9 years of age, these days. "Budding" describes the first, small growth of breasts near the beginning of puberty.
Puberty is when a child grows into an adult. Many changes occur such as: * Enlargement of the genitals (guys) * Development of breasts (girls) * "Wet" Dreams (guys) * Beginning menstrual cycles/periods (girls) * Acne (both genders) * Other stuff (research it) There is no "set" age to begin puberty and you can't "attain" it. It just happens as you grow into an adult.
Menses is a medical term for the meaning of menstrual period that occurs in young females who are starting the process of puberty. This will occur monthly until the young female reaches the appropriate age for menopause.
Primary amenorrhea refers to not having a menstrual period at the age of puberty.