Primary Amenorrhea:a) Absence of Menarche by 14 Years without secondary sexual charactersb) Absence of Menarche by 16 Yrs with secondary sexual charactersc) Absence of secondary sexual characters by Yrsd) Endometriosis
High-Yield Explanation
Primary amenorrhea is a condition when a female has not attained menarche by the age of 14 years in the absence of growth or development of secondary sexual characteristics.
OR
No menarche by the age of 16 years regardless of the presence of normal growth and development of secondary sexual characteristics.