UNIT 1 INTRODUCTION TO GYNECOLOGY Definitions: 1) Puberty: Puberty is the period in which secondary sexual characteristics gradually develop. 2) Precious Puberty: Precious Puberty means when the secondary sexual characteristic in the glass starts before 8 years of life and menstruation cycle starts before 10 years then this condition is called Precious Puberty. 3) Delayed Puberty: Delayed Puberty is when the secondary sexual characteristic does not appear even after 13-14