Absence of menses by 14 years of age in the absence of growth or development of secondary sexual characteristics or absence of menses by 16 years of age regardless of the presence of normal growth and development including secondary sexual characteristics
Secondary amenorrhea
Cessation of menstruation in a woman who had experienced menstrual bleeding previously for three normal cycles or for 6 months
A study in India indicated that 11.1% of adolescent girls, who presented with gynaecological complaints of menstrual disorders, had primary amenorrhea. However, the incidence of the disease in women in general is lessthan1%