Question

What is begining of menstrual cycle called?

Answer 1

The menstrual cycle is the regular natural change that occurs in the female reproductive system (specifically the uterus and ovaries) that makes pregnancy possible. ... The first period usually begins between twelve and fifteen years of age, a point in time known as menarche.

Answer 2

The beginning of menstrual cycle is called Menarche.

Explanation: Menstrual cycle occurs in female. It starts about twelve to fourteen years of age. This stage is known as menarche  period. During this period, there are various changes occurs in female such as:-  

1) voice becomes soft

2) Skin becomes soft and glowing.

3) Pubic hair occurs in genital area.

This period is some time painful. Menstruation occurs due to hormonal changes in females body.