RESEARCH ON CHANGES PUBERTY OF STUDENTS AT SECONDARY SCHOOL IN VU BAN DISTRICT, NAM DINH PROVICE

Abstract

Introduction: Psychological changes in the age of puberty significantly affect teenagers’ life and learning, so understanding the signs of puberty is very important in helping parents, teachers and the school accompanying with the children to go through this period safely. Objectives: to study the characteristics of puberty of the boys and girls at Goi Town secondary school. Methods: The cross-sectional descriptive study with 400 boys and girls at Goi Town Secondary School in 2019. Result: The girl with acne on their faces accounted for 70.5%, the boys with acne on the faces accounted for 51.0%; the rate of pubic hair growth increases with age; Armpit hair is also one of the typical signs of puberty. However, it does not appear as early and common as the pubic hair; The average age of the girl with first menstruation (13 years 1 month ± 1 year 3 months) which is earlier than the age of the boys with first ejaculation (14 years 1 month ± 1 year 2 months).